Buzz Aldrin – the second man to walk on the Moon – is recovering nicely today in a New Zealand hospital after an emergency medical evacuation cut short his record setting Antarctic expedition as the oldest man to reach the South Pole – which Team Buzz lightheartly noted would make him “insufferable”!
“He’s recovering well in NZ [New Zealand],” Team Buzz said in an official statement about his evacuation from the South Pole.
Apollo 11 moonwalker Buzz Aldrin, who followed Neil Armstrong in descending to the lunar surface in 1969 on America’s first Moon landing mission, had to be suddenly flown out of the Admunsen-Scott Science Station late last week per doctors orders after suffering from shortness of breath and lung congestion during his all too brief foray to the bottom of the world.
He was flown to a hospital in Christchurch, New Zealand for emergency medical treatment on Dec. 1.
Upon learning from the National Science Foundation (NSF) that Aldrin “now holds the record as the oldest person to reach the South Pole at the age of 86,” his Mission Director Christina Korp jokingly said: ‘He’ll be insufferable now.”
“Buzz Aldrin is resting in hospital in Christchurch, New Zealand. He still has some congestion in his lungs so has been advised not to take the long flight home to the States and to rest in New Zealand until it clears up,” Team Buzz said in an official statement on Dec. 3.
Buzz had been at the South Pole for only a few hours when he took ill, apparently from low oxygen levels and symptoms of altitude sickness.
“I’m extremely grateful to the National Science Foundation (NSF) for their swift response and help in evacuating me from the Admunsen-Scott Science Station to McMurdo Station and on to New Zealand. I had been having a great time with the group at White Desert’s camp before we ventured further south. I really enjoyed the time I spent talking with the Science Station’s staff too,” said Aldrin from his hospital room in a statement.
Prior to the planned Antarctic journey, his doctors had cleared him to take the long trip – which he views as “the capstone of his personal exploration achievements”.
Buzz’s goal in visiting the South Pole was to see “what life could be like on Mars” – which he has been avidly advocating as the next goal for a daring human spaceflight journey to deep space.
“His primary interest in coming to Antarctica was to experience and study conditions akin to Mars that are more similar there than any other place on earth,” Team Buzz elaborated.
He had hoped to speak more to the resident scientists about their research but it was all cut short by his sudden illness.
“I started to feel a bit short of breath so the staff decided to check my vitals. After some examination they noticed congestion in my lungs and that my oxygen levels were low which indicated symptoms of altitude sickness. This prompted them to get me out on the next flight to McMurdo and once I was at sea level I began to feel much better. I didn’t get as much time to spend with the scientists as I would have liked to discuss the research they’re doing in relation to Mars. My visit was cut short and I had to leave after a couple of hours. I really enjoyed my short time in Antarctica and seeing what life could be like on Mars,” Aldrin explained.
Buzz also thanked everyone who sent him well wishes.
“Finally, thanks to everyone from around the world for their well wishes and support. I’m being very well looked after in Christchurch. I’m looking forward to getting home soon to spend Christmas with my family and to continue my quest for Cycling Pathways and a permanent settlement on Mars. You ain’t seen nothing yet!”, concluded Aldrin.
Destination Mars is a holographic exhibit at the Kennedy Space Center visitor complex in Florida. Be sure to catch it soon because the limited time run end on New Year’s Day 2017.
The new ‘Destination Mars’ limited engagement exhibit magically transports you to the surface of the Red Planet via Microsoft HoloLens technology.
It literally allows you to ‘Walk on Mars’ using real imagery taken by NASA’s Mars Curiosity rover and explore the alien terrain, just like real life scientists on a geology research expedition – with Buzz Aldrin as your guide.
Here’s my Q & A with moonwalker Buzz Aldrin speaking to Universe Today at Destination Mars:
Video Caption: Buzz Aldrin at ‘Destination Mars’ Grand Opening at KSCVC. Apollo 11 moonwalker Buzz Aldrin talks to Universe Today/Ken Kremer during Q&A at ‘Destination Mars’ Holographic Exhibit Grand Opening ceremony at Kennedy Space Center Visitor Complex (KSCVC) in Florida on 9/18/16. Credit: Ken Kremer/kenkremer.com
Learn more about ULA Delta 4 launch on Dec 7, GOES-R weather satellite, Heroes and Legends at KSCVC, OSIRIS-REx, InSight Mars lander, ULA, SpaceX and Orbital ATK missions, Juno at Jupiter, SpaceX AMOS-6 & CRS-9 rocket launch, ISS, ULA Atlas and Delta rockets, Orbital ATK Cygnus, Boeing, Space Taxis, Mars rovers, Orion, SLS, Antares, NASA missions and more at Ken’s upcoming outreach events:
Dec 5-7: “ULA Delta 4 Dec 7 launch, GOES-R weather satellite launch, OSIRIS-Rex, SpaceX and Orbital ATK missions to the ISS, Juno at Jupiter, ULA Delta 4 Heavy spy satellite, SLS, Orion, Commercial crew, Curiosity explores Mars, Pluto and more,” Kennedy Space Center Quality Inn, Titusville, FL, evenings
Liftoff of the highly advanced Geostationary Operational Environmental Satellite-R (GOES-R) weather observatory bolted atop a ULA Atlas V rocket came at 6:42 p.m. EST on Saturday, Nov. 19, 2016 from Space Launch Complex 41 (SLC-41) on Cape Canaveral Air Force Station, Florida.
The launch was delayed for an hour until the very end of the launch window to deal with unexpected technical and Eastern range issues, that only added more drama and changed the sunset launch into a night launch for the hordes of spectators who gathered here from around the world – appropriate since this probe will touch the lives of humans world wide.
“It’s a dramatic leap in capability – like moving from black and white TV to HDTV,” explained Greg Mandt, the NOAA GOES-R program manager during a prelaunch media briefing in the cleanroom processing facility at Astrotech.
“This is a very exciting time,” explained Greg Mandt, the NOAA GOES-R program manager during the Astrotech cleanroom briefing.
“This is the culmination of about 15 years of intense work for the great team of NOAA and NASA and our contractors Lockheed Martin and Harris.”
“We are bringing the nation a new capability. The GOES program has been around for about 40 years and most every American sees it every night on the weather broadcasts when they see go to the satellite imagery. And what’s really exciting is that for the first time in that 40 years we are really end to end replacing the entire GOES system. The weather community is really excited about what we are bringing.”
GOES-R will bring about a “quantum leap” in weather forecasting capabilities that will soon lead to more accurate and timely forecasts, watches and warnings for the Earth’s Western Hemisphere when it becomes fully operational in about a year.
But the first images are expected within weeks! And both researchers and weather forecasters can’t wait to see, analyze and put to practical use the sophisticated new images and data that will improve forecasts and save lives during extreme weather events that are occurring with increasing frequency.
GOES-R will be renamed GOES-16 after it reaches its final orbit 22,000 above Earth about two weeks from now.
Over the next year, teams of engineers and scientists will check out and validate the state of the art suite of six science instruments that also includes the first operational lightning mapper in geostationary orbit – dubbed the Geostationary Lightning Mapper (GLM).
“The launch of GOES-R represents a major step forward in terms of our ability to provide more timely and accurate information that is critical for life-saving weather forecasts and warnings,” said Thomas Zurbuchen, associate administrator for NASA’s Science Mission Directorate in Washington.
“It also continues a decades-long partnership between NASA and NOAA to successfully build and launch geostationary environmental satellites.”
GOES-R, which stands for Geostationary Operational Environmental Satellite – R Series – is a new and advanced transformational weather satellite that will vastly enhance the quality, speed and accuracy of weather forecasting available to forecasters for Earth’s Western Hemisphere.
The science suite includes the Advanced Baseline Imager (ABI), Geostationary Lightning Mapper (GLM), Solar Ultraviolet Imager (SUVI), Extreme Ultraviolet and X-Ray Irradiance Sensors (EXIS), Space Environment In-Situ Suite (SEISS), and the Magnetometer (MAG).
ABI is the primary instrument and will collect 3 times more spectral data with 4 times greater resolution and scans 5 times faster than ever before – via the primary Advanced Baseline Imager (ABI) instrument – compared to the current GOES satellites.
So instead of seeing weather as it was, viewers will see weather as it is.
Whereas the current GOES-NOP imagers scan the full hemispheric disk in 26 minutes, the new GOES-ABI can simultaneously scan the Western Hemisphere every 15 minutes, the Continental U.S. every 5 minutes and areas of severe weather every 30-60 seconds.
“The next generation of weather satellites is finally here,” said NOAA Administrator Kathryn Sullivan.
“GOES-R will strengthen NOAA’s ability to issue life-saving forecasts and warnings and make the United States an even stronger, more resilient weather-ready nation.”
It is designed to last for a 15 year orbital lifetime.
The 11,000 pound satellite was built by prime contractor Lockheed Martin and is the first of a quartet of four identical satellites – comprising GOES-R, S, T, and U – at an overall cost of about $11 Billion. This will keep the GOES satellite system operational through 2036.
Today’s launch was the 10th of the year for ULA and the 113th straight successful launch since the company was formed in December 2006.
GOES-R launched on the Atlas V 541 configuration vehicle, augmented by four solid rocket boosters on the first stage. The payload fairing is 5 meters (16.4 feet) in diameter. The first stage is powered by the RD AMROSS RD-180 engine. And the Centaur upper stage is powered by a single-engine Aerojet Rocketdyne RL10C engine.
This was only the fourth Atlas V launch employing the 541 configuration.
Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.
Learn more about GOES-R weather satellite, Heroes and Legends at KSCVC, OSIRIS-REx, InSight Mars lander, ULA, SpaceX and Orbital ATK missions, Juno at Jupiter, SpaceX AMOS-6 & CRS-9 rocket launch, ISS, ULA Atlas and Delta rockets, Orbital ATK Cygnus, Boeing, Space Taxis, Mars rovers, Orion, SLS, Antares, NASA missions and more at Ken’s upcoming outreach events:
Nov 19-20: “GOES-R weather satellite launch, OSIRIS-Rex, SpaceX and Orbital ATK missions to the ISS, Juno at Jupiter, ULA Delta 4 Heavy spy satellite, SLS, Orion, Commercial crew, Curiosity explores Mars, Pluto and more,” Kennedy Space Center Quality Inn, Titusville, FL, evenings
A type of rock formation found on Mars may be some of the best evidence yet for life on that planet, according to a new study at Nature.com. The formations in question are in the Gusev Crater. When Spirit examined the spectra of the formations, scientists found that they closely match those of formations at El Tatio in Northern Chile.
The significance of that match? The El Tatio formations were produced by a combination of living and non-living processes.
The Gusev Crater is a large crater that formed 3 to 4 billion years ago. It’s an old crater lake bed, with sediments up to 3,000 feet thick. Gusev also has exposed rock formations which show evidence of layering. A system of water channels called Ma’adim Vallis flows into Gusev, which could account for the deep sediments.
When it comes to evidence for the existence of life on Mars, and on early Earth, researchers often focus on hydrothermal spring deposits. These deposits can capture and preserve the biosignatures of early life. You can’t find evidence of ancient life just anywhere because geologic processes erase it. This is why El Tatio has received so much attention.
It’s also why formations at Gusev have received attention. They appear to have a hydrothermal origin as well. Their relation to the rocks around them support their hydrothermal origin.
El Tatio in Chile is a hard-to-find combination of extremely high UV, low rainfall, high annual evaporation rate, and high elevation. This makes it an excellent analog for Mars.
The Mars-like conditions at El Tatio make it rather unique on Earth, and that uniqueness is reflected in the rock deposits and structures that it produces. The most unique ones may be the biomediated silica structures that resemble the structures in Gusev. This resemblance suggest that they have the same causes: hydrothermal vents and biofilms.
Biomediated Structures?
The rock structures at El Tatio are typically covered with very shallow water that supports bio-films and mats comprised of different diatoms and cyanobacteria. The size and shape of the structures varies, probably according to the variable depth, flow velocity, and flow direction of the water. The same variations are present at Gusev on Mars. This begs the question, “Could the structures at Gusev also have a biological cause?”
Luckily, we have a rover on Mars that can probe the Gusev formations more deeply. Spirit used its Miniature Thermal Emission Spectrometer (Mini-TES) to obtain spectra of the Gusev formations. These spectra confirmed the similarity to the terrestrial formations at El Tatio.
Spirit was helpful in other ways. The rover has one inoperable wheel, which drags across the Martian surface, disrupting and overturning rock structures. Spirit was intentionally driven across the Gusev formations, in order to overturn and expose fragments. Then, Spirit’s Microscopic Imager was trained on those fragments.
Unfortunately, Spirit lacks the instrumentation to look deeply into the internal microscale features of the Martian rocks. If Spirit could do that, we would be much more certain that the Martian rocks were partly biogenic in origin. All of the surrounding factors suggest that they do, but that’s not enough to come to that conclusion.
This study presents more compelling evidence that there was indeed life on Mars at some point. But it’s not conclusive.
KENNEDY SPACE CENTER VISITOR COMPLEX, FL – America’s pioneering astronauts who braved the perils of the unknown and put their lives on the line at the dawn of the space age atop mighty rockets that propelled our hopes and dreams into the new frontier of outer space and culminated with NASA’s Apollo lunar landings, are being honored with the eye popping new ‘Heroes and Legends’ attraction at the Kennedy Space Center Visitor Complex (KSCVC) in Florida.
With fanfare and a fireworks display perfectly timed for Veterans Day, ‘Heroes and Legends’ opened its doors to the public on Friday, November 11, 2016, during a gala ceremony attended by more than 25 veteran and current NASA astronauts, including revered Gemini and Apollo space program astronauts Buzz Aldrin, Jim Lovell, Charlie Duke, Tom Stafford, Dave Scott, Walt Cunningham and Al Worden – and throngs of thrilled members of the general public who traveled here as eyewitnesses from all across the globe.
Aldrin, Scott, and Duke walked on the Moon during the Apollo 11, 15 and 16 missions.
Also on hand were the adult children of the late-astronauts Alan Shepard (first American in space) and Neil Armstrong (first man to walk on the Moon), as well as representatives from NASA, The Boeing Company (sponsor) and park operator Delaware North – for the engaging program hosted by Master of Ceremonies John Zarrella, CNN’s well known and now retired space correspondent.
The stunning new ‘Heroes and Legends’ attraction is perfectly positioned just inside the entrance to the KSC Visitor Complex to greet visitors upon their arrival with an awe inspiring sense of what it was like to embark on the very first human journey’s into space by the pioneers who made it all possible ! And when every step along the way unveiled heretofore unknown treasures into the origin of us and our place in the Universe.
Upon entering the park visitors will immediately and surely be mesmerized by a gigantic bas relief sculpture recreating an iconic photo of America’s first astronauts – the Mercury 7 astronauts; Scott Carpenter, Gordon Cooper, John Glenn, Gus Grissom, Wally Schirra, Alan Shepard, and Deke Slayton.
“With all the drama of an actual trip to space, guests of Kennedy Space Center Visitor Complex in Florida will be greeted with a dramatic sense of arrival with the new Heroes & Legends featuring the U.S. Astronaut Hall of Fame® presented by Boeing. Positioned just inside the entrance, the attraction sets the stage for a richer park experience by providing the emotional background and context for space exploration and the legendary men and women who pioneered our journey into space,” according to a description from Delaware North Companies Parks and Resorts, which operates the KSC visitor complex.
“Designed to be the first stop upon entering Kennedy Space Center Visitor Complex, Heroes & Legends uses the early years of the space program to explore the concept of heroism, and the qualities that define the individuals who inspired their generation.”
“I hope that all of you, when you get to see Heroes and Legends, you’re inspired,” said Kennedy Space Center Director Bob Cabana, a former space shuttle astronaut and member of the Astronaut Hall of Fame, during the ceremony.
“The children today can see that there is so much more they can reach for if they apply themselves and do well.”
“I think people a thousand years from now are going to be happy to see these artifacts and relics,” Apollo 15 command module pilot Al Worden told the crowd.
“We have so much on display here with a Saturn V, Space Shuttle Atlantis. People will think back and see the wonderful days we had here. And I guess in that same vein, that makes me a relic too.”
Furthermore, ‘Heroes and Legends’ is now very conveniently housed inside the new home of the U.S. Astronaut Hall of Fame (AHOF) – making for a unified space exploration experience for park visitors. AHOF previously was located at another off site park facility some seven miles outside and west of the Visitor Complex.
The bas relief measures 30 feet tall and 40 feet wide. It is made put of fiberglass and was digitally sculpted, carved by CNC machines and juts out from the side of the new into the new 37,000 square foot U.S. Astronaut Hall of Fame (AHOF) structure.
To date 93 astronauts have been inducted into the Astronaut Hall of Fame spanning the Mercury, Gemini, Apollo and Space Shuttle programs.
“I don’t consider myself a hero like say, Charles Lindbergh,” said Jim Lovell, a member of the Astronaut Hall of Fame and Apollo 13 commander, when asked by Zarrella what it feels like to be considered an American space hero. “I just did what was proper and exciting — something for my country and my family. I guess I’m just a lucky guy.”
The astronauts are also quick to say that they were supported by hundreds of thousands of dedicated people working in the space program to make Apollo happen.
“It important to remember all the dedication and hard work that it took from those of us involved in the astronaut program, but also the support we received from Kennedy and all the contractors involved in Apollo,” said Apollo 16 moonwalker Charlie Duke.
“400,000 people made it possible for 24 of us to go to the Moon.”
“So dream big, aim high!” exclaimed Duke.
“Hopefully this is an inspiration to you and your kids and grandkids.”
Construction of the facility by Falcon’s Treehouse, an Orlando-based design firm began in the fall of 2015.
“We’re focusing on a story to create what we consider a ‘launch pad’ for our visitors,” said Therrin Protze, the Delaware North chief operating officer of the Visitor Complex. “This is an opportunity to learn about the amazing attributes of our heroes behind the historical events that have shaped the way we look at space, the world and the future.
“We are grateful to NASA for allowing us to tell the NASA story to millions of guests from all over the world,” Protze said.
Visitors walk up a sweeping ramp to enter the Heroes and Legends experience.
After visitors walk through the doors, they will be immersed by two successive video presentations and finally the Hall of Fame exhibit hall.
Here’s a detailed description:
• In the stunning 360-degree discovery bay, What is a Hero?, guests will explore how society defines heroism through diverse perspectives. Each examination of heroism starts with the following questions: What is a hero; Who are the heroes of our time; and What does it take to be a hero? During the seven-minute presentation, the historic beginning of the space race is acknowledged as the impetus for America’s push to the stars in NASA’s early years and the rivalry between the United States and the Soviet Union during the Cold War.
• Through the Eyes of a Hero is a custom-built theater featuring a multi-sensory experience during which guests will vicariously join NASA’s heroes and legends on the most perilous stages of their adventures. Artistically choreographed lighting and 3D imagery will be enhanced by intense, deeply resonant sound effects to create the sensation of being “in the moment.” The seven and one-half minute show takes guests on an intimate journey with four space-age heroes to fully immerse them in the awe, excitement and dangers of the first crewed space program missions.
• The third experience, A Hero Is…, offers interactive exhibits that highlight the nine different attributes of our history making astronauts: inspired, curious, passionate, tenacious, disciplined, confident, courageous, principled and selfless. A collection of nine exhibit modules will explore each aforementioned attribute, through the actual experiences of NASA’s astronauts. Their stories are enhanced with memorabilia from the astronaut or the space program.
Priceless historic artifacts on display also include two flown capsules from Mercury and Gemini; the Sigma 7 Mercury spacecraft piloted by Wally Schirra during his six-orbit mission in October 1962 and the Gemini IX capsule flown by Tom Stafford and Gene Cernan for three days in June 1966.
The human rated Mercury Redstone-6 (MR-6) is also on display and dramatically mated to the Schirra’s Sigma 7 Mercury capsule.
Another room houses the original consoles of the Mercury Mission Control room with the world map that was used to follow the path of John Glenn’s Mercury capsule Friendship 7 between tracking stations when he became the first American to orbit Earth in 1962.
Further details about ‘Heroes and Legends, the U.S. Astronaut Hall of Fame and all other attractions are available at the Kennedy Space Center Visitor Complex website: https://www.kennedyspacecenter.com/
Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.
Learn more about Heroes and Legends at KSCVC, GOES-R weather satellite, OSIRIS-REx, InSight Mars lander, SpaceX missions, Juno at Jupiter, SpaceX CRS-9 rocket launch, ISS, ULA Atlas and Delta rockets, Orbital ATK Cygnus, Boeing, Space Taxis, Mars rovers, Orion, SLS, Antares, NASA missions and more at Ken’s upcoming outreach events:
Nov 17-20: “GOES-R weather satellite launch, OSIRIS-REx launch, SpaceX missions/launches to ISS on CRS-9, Juno at Jupiter, ULA Delta 4 Heavy spy satellite, SLS, Orion, Commercial crew, Curiosity explores Mars, Pluto and more,” Kennedy Space Center Quality Inn, Titusville, FL, evenings
Many people love to ask, why does it always rain on me? There are those who would like to know why it rains so much when they are sad, when they feel like going out, or only when they decide to jog or take their pet for a walk. There are no easy answers for these arguably subjective questions. However, if one to ask “why does it rain”, the answer would be much simpler.
For starters, rain is liquid precipitation, as opposed to non-liquid kinds (such as snow, hail and sleet). It begins with the vaporization of water near the Earth’s surface, in the form of rivers, lakes, oceans or ground water, provided there are atmospheric temperatures above melting point of water (0°C). This is followed by the condensation of atmospheric water vapor into drops of water that are heavy enough to fall, often making it to the surface.
Precipitation is also a major component of the hydrological cycle – aka. “water cycle“. This is the term used to describe the continuous movement of water on, above, and below the Earth, and is responsible for depositing most of the fresh water on the planet. Rain occurs when two basic processes occur: Saturation and Coalescence.
Saturation:
This process occurs when “invisible” moisture in the air (water vapor) is forced to condense on microscopic particles (i.e. pollen and dust) to form tiny “visible” droplets. The amount of moisture in air is also commonly reported as relative humidity; which is the percentage of the total water vapor air can hold at a particular air temperature.
How much water vapor a parcel of air can contain before it becomes saturated (100% relative humidity) and forms into a cloud (a group of visible and tiny water and ice particles suspended above the Earth’s surface) depends on its temperature. Warmer air can contain more water vapor than cooler air before becoming saturated.
Coalescence:
Condensation occurs when the air is cooled down to its “dew point” temperature – the point at which it becomes saturated. Coalescence occurs when water droplets fuse to create larger water droplets (or when water droplets freeze onto an ice crystal) which is usually the result of air turbulence which forces collisions to occur.
As these larger water droplets descend, coalescence continues, so that drops become heavy enough to overcome air resistance and fall as rain. Rain is the primary source of freshwater for most areas of the world, providing suitable conditions for diverse ecosystems, as well as water for hydroelectric power plants and crop irrigation.
Measurement:
Rainfall is measured through the use of rain gauges. These gauges typically consist of two cylinders, one within the other, that fill with water. The inner cylinder fills first, with overflow entering the outer cylinder. Once the inner cylinder is filled, it is emptied and then filled with the remaining rainfall in the outer cylinder, producing a total estimate in millimeters or inches.
Other types of gauges include the popular wedge gauge, the tipping bucket rain gauge, and the weighing rain gauge. The most inexpensive option is a simple cylinder with a measuring stick, provided the cylinder is straight and the measuring stick is accurate. Any of these gauges can be made at home, with the right kind of knowledge.
Precipitation amounts are also estimated actively by weather radar, and passively by weather satellites. Examples of the latter include the Tropical Rainfall Measuring Mission (TRMM) satellite – a joint mission conducted by NASA and the Japanese Space Agency to monitor precipitation in the tropics – and NASA’s Global Precipitation Measurement (GPM).
Both of these mission employ microwave sensors to create precipitation estimates. Annual precipitation data is collected and monitored by NASA’s Earth Observatory (NEO), which creates detailed maps of global weather patterns (as well as heating and other meteorological factors).
Climate Change:
Anthropocentric Climate Change, which includes Global Warming, is also causing changes in global precipitation patterns. This is due to the fact that increases in carbon dioxide emissions have led to increasing annual temperatures around the globe, leading to more evaporation and precipitation and more extreme weather events.
At latitudes north of 30°, precipitation has increased over the past century, while similarly declining over the tropics since the 1970s. And while there has been no consistent change on a global scale, regional variations have been pronounced. For instance, eastern portions of North and South America, northern Europe, and northern and central Asia have become wetter.
Other regions, such as the Sahel (between the Sahara desert and the Sudanian Savanna), the Mediterranean, southern Africa and parts of southern Asia have become drier. There has also been an increase in both the number of heavy rainstorms and droughts over many areas in the past century. In the tropics and subtropics, there has also been an increase in the prevalence of droughts since the 1970s.
Rain on Other Planets:
Despite what you might think, Earth is not the only planet where rain occurs. On other bodies in the Solar System, liquid precipitation takes place, though it rarely involves water. In fact, on Venus, rain regularly occurs, except that it involves sulfuric acid!
This acid rain is formed high in the atmosphere, where the wind speeds get up to 360 kilometers/hour (224 mph). However, once the droplets reach the lower atmosphere, they evaporate due to the extreme heat – over 460 °C or 860 °F. Hence, the rain never reaches the surface, which is extremely dry and molten.
On Saturn’s moon Titan, rain takes the form of methane. As evidence provided by the Cassini-Huygens mission has indicated, the moon has an active hydrological cycle. Except that Titan’s involves liquid hydrocarbons instead of water. As part of this cycle, liquid methane evaporates on the surface, accumulates in the atmosphere, and then returns to the surface as seasonal rains.
But it gets weirder! For instance, in recent years, scientists have obtained experimental evidence that indicates that Jupiter and Saturn may experience liquid helium rain. Due to the extreme pressure conditions that exist within the gas giants interior, these gases are compressed to the point where they take liquid form.
And then there’s what is known as “diamond rain”, which has been speculated to exist on all the gas giants. Essentially, Jupiter, Saturn, Uranus and Neptune all possess methane in their interiors. Due to the extreme pressure conditions, these hydrocarbons are compressed to the point that actual diamonds are believed to form. As such, diamond rain may actually exist in these gas/ice giants.
Last, but not least, there is the curious case of “Coronal Rain“, which takes place on the Sun. This phenomena occurs during a coronal mass ejection, where plasma cools after being ejected and falls back to the surface. Sometimes, these plasma droplets makes ‘splashes’ where they hit. And instead of falling straight down, the plasma rain appears to follow the path of the Sun’s invisible magnetic field lines.
Here on Earth, rain takes the form of water, and is an intrinsic part of our hydrological cycle. On other worlds, rain can take a different form, but still occupies much the same place in the planet’s cycle. Due to changing temperatures, saturation and coalescence, what goes up (in the form of vapor) must eventually come down.
I love easy and bright. While I often spend time seeking faint nebulae and wandering comets, there’s nothing like just looking up and seeing a beautiful scene aglow in the night sky. No binoculars or telescope needed. That’s exactly what will happen Tuesday November 2, when an attractive crescent Moon will join Saturn and Venus at dusk in the southwestern sky.
What a fine threesome they’ll make: Venus the white-hot spark shining at magnitude –4.0; Saturn a mellow magnitude +0.5, some 20 times fainter and the Moon a fingernail crescent above them both. The Moon will be just two days past apogee, the furthest point in its orbit from Earth. Does it look a little smaller than the usual crescent? If you’re a keen watcher of crescents, you just might notice the difference.
In less than two weeks, on November 14, the crescent will have waxed to full, swung around to the opposite end of its orbit, where it will be at perigee, its closest point to Earth. When a Full Moon occurs at perigee, we call it a Supermoon because it’s closer and correspondingly bigger and brighter than a typical Full Moon.
For a variety of reasons, the November Supermoon will come exceptionally close to Earth, the closest one in 70 years as a matter of fact. The last time Earth and Moon embraced each other so tightly was January 26, 1948, the year baseball great Babe Ruth died. But I’m getting ahead of myself. We’ll have much more on the Supermoon soon!
Tuesday night you have the pleasure of an eye-catching crescent filled with darkly luminous earthshine, sunlight reflected off our jolly blue and white globe into space that reflects from the Moon and back to Earth. Being twice reflected, the returning light is feeble, giving the Moon a haunted look.
Crescent phase is when earthshine is brightest. Why? Phases of Earth and Moon are complementary — when we see a crescent, an astronaut on the Moon would look back to see a nearly Full Earth in the sky. As you’ve already guessed, a Full Earth reflects a great deal more light than a half or crescent. Be sure to point your binoculars at the earth-lit Moon; the contrast of dusky earthlight adjacent to the sunlit crescent gives the scene a striking 3D look.
And if your glass can magnify ten times or more, you’ll get a sneak preview of several of the dark lunar seas or maria in the smoky light. Seas that will by and by ease into sunlight as the lunar terminator, the line separating day from night, rolls ever westward.
Have a small telescope? This may be one of your last easy chances at seeing the planet Saturn before it’s gobbled up by the western horizon. The ringed one has been sinking westward the past couple months and will soon be in conjunction with the Sun. I hate to see a good planet go, that’s why I’m happy to share that Venus will be with us a long, long time. Watch for this most brilliant of planets to rise higher in the southwestern sky as we approach Christmas and then swing to the north through early winter before dropping out of the evening sky in March 2017.
Thank you Venus for lighting our path on the snowy nights that lie ahead!
*** If you’d like learn more about how to find the planets, check out my new book, Night Sky with the Naked Eye. It covers all the wonderful things you can see in the night sky without special equipment. The book publishes on Nov. 8, but you can pre-order it right now at these online stores. Just click an icon to go to the site of your choice – Amazon, Barnes & Noble or Indiebound. It’s currently available at the first two outlets for a very nice discount:
What’s the most powerful telescope for observing Mars? A telephoto lens on the HiRise camera on the Mars Reconnaissance Orbiter that can resolve features as small as 3 feet (1-meter) across. NASA used that camera to provide new details of the scene near the Martian equator where Europe’s Schiaparelli test lander crashed to the surface last week.
During an October 25 imaging run HiRise photographed three locations where hardware from the lander hit the ground all within about 0.9 mile (1.5 kilometers) of each other. The dark crater in the photo above is what you’d expect if a 660-pound object (lander) slammed into dry soil at more than 180 miles an hour (300 km/h). The crater’s about a foot and a half (half a meter) deep and haloed by dark rays of fresh Martian soil excavated by the impact.
But what about that long dark arc northeast of the crater? Could it have been created by a piece of hardware jettisoned when Schiaparelli’s propellant tank exploded? The rays are curious too. The European Space Agency says that the lander fell almost vertically when the thrusters cut out, yet the asymmetrical nature of the streaks — much longer to the west than east — would seem to indicate an oblique impact. It’s possible, according to the agency, that the hydrazine propellant tanks in the module exploded preferentially in one direction upon impact, throwing debris from the planet’s surface in the direction of the blast, but more analysis is needed. Additional white pixels in the image could be lander pieces or just noise.
In the wider shot, several other pieces of lander-related flotsam are visible. About 0.8 mile (1.4 km) eastward, you can see the tiny crater dug out when the heat shield smacked the ground. Several bright spots might be pieces of its shiny insulation. About 0.6 mile (0.9 kilometer) south of the lander impact site, two features side-by-side are thought to be the spacecraft’s parachute and the back shell. NASA plans additional images to be taken from different angle to help better interpret what we see.
The test lander is part of the European Space Agency’s ExoMars 2016 mission, which placed the Trace Gas Orbiter into orbit around Mars on Oct. 19. The orbiter will investigate the atmosphere and surface of Mars in search of organic molecules and provide relay communications capability for landers and rovers on Mars. Science studies won’t begin until the spacecraft trims its orbit to a 248-mile-high circle through aerobraking, which is expected to take about 13 months.
Everything started out well with Schiaparelli, which successfully transmitted data back to Earth during its descent through the atmosphere, the reason we know that the heat shield separated and the parachute deployed as planned. Unfortunately, the chute and its protective back shell ejected ahead of time followed by a premature firing of the thrusters. And instead of burning for the planned 30 seconds, the rockets shut off after only 3. Why? Scientists believe a software error told the lander it was much closer to the ground than it really was, tripping the final landing sequence too early.
Landing on Mars has never been easy. We’ve done flybys, attempted to orbit the planet or land on its surface 44 times. 15 of those have been landing attempts, with 7 successes: Vikings 1 and 2, Mars Pathfinder, the Spirit and Opportunity rovers, the Phoenix Lander and Curiosity rover. We’ll be generous and call it 8 if you count the 1971 landing of Mars 3 by the then-Soviet Union. It reached the surface safely but shut down after just 20 seconds.
Mars can be harsh, but it forces us to get smart.
**** Want to learn more about Mars and how to track it across the sky? My new book, Night Sky with the Naked Eye, which will be published on Nov. 8, covers planets, satellites, the aurora and much more. You can pre-order it right now at these online stores. Just click an icon to go to the site of your choice – Amazon, Barnes & Noble or Indiebound. It’s currently available at the first two outlets for a very nice discount.
The value of a good analyst is priceless. They can synthesize data from disparate sources and weave a reasonable story to bring sense out of historical events and to provide guidance to planning for the future. Adding a sense of scale to space analysis so as to make things relevant to people living on the Earth today adds even more to their value. This is what Claudio Vita-Finzi provides in his book “A History of the Solar System.” It’s a collection of analyses of our grand backyard from a variety of perspectives and it offers great value to the reader.
We know so much about our solar system. And at the same time we realize that we know so little. That’s the main story of this book. It notes the common lore: there are planets, asteroids, comets and dust. That’s today. Long, long ago, a great expanse of dust got localised and made the Milky Way, so at least is postulated in the book. The future should see our Sun expand, larger than the orbit of the nearest planets.
But this book also connects lots of current scientific research to these stories. This is where the spirit of the analyst comes into play. For instance, the inner planets have certain ratios of crust to mantle to core while the outer bodies could be awash in oceans that are slightly sealed with solid caps. Why? The book provides some ideas but we’re still just learning to ask the questions.
The book postulates, “Why does water have different Hydrogen/Deuterium ratios throughout the solar system”. Or “What do calcium-aluminium-rich inclusions tell us about the construction of our universe”. And the book goes on to hypothesize on possible accretion processes for our solar system as based upon observations of other planetary systems. With explanations helped by current events, such as the “record of cosmogenic isotopes … that can be recovered from ice cores and tree rings” we see how the analysis extends to particulars of the heliosphere.
Be warned though, the book expects a deep level of knowledge from the reader, such as with its comparison of our Sun to the star ?01 Uma or the magnetic lineations offsets across Valles Marineris indicating crustal plate interactions. And where might all this knowledge lead the reader? Perhaps the author’s frequent allusions to abiotic and living processes, together with methods to determine the presence of life gives a clue. That is, the reader might realize just how possible yet how difficult would be to detect life elsewhere in our solar system and indeed elsewhere in the universe.
As far as writing styles, this book could be considered tight. In less than a hundred pages it covers a huge amount of the key indicators used to define our solar system. The text is heavily referenced with 20-30 for each of the 8 chapters. A sprinkling of pictures and illustrations amplify its explanations. But, as the author says, this is not a textbook of “one era after another”. Rather the author tries to link how today derives from a long ago cloud of dust which will likely lead to some very interesting times for tomorrow. And this may be indicative of what’s happening throughout the universe. As the reader will learn, humans are gaining the knowledge that can bring some order into the understanding of processes of the universe and we have only to appreciate the connections in order to heighten our understanding.
With a few billion years of formation behind it, our solar system certainly seems special. The obvious is that we know it harbours life. Us! Yet a complex web of processes and interactions bind all substances together and are the baseline to our future. Perhaps by looking at the past then we can better hypothesize what the future will hold. If you want to try this then Claudio Vita-Finzi’s book “A History of the Solar System” is a great place to get ideas and capture some of excitement of the vivacity of our life. Take if for a read and from it free up your imagination to wonder and assess where we stand in time and space.
After a two year gap, the first Cygnus cargo freight train from Virginia bound for the International Space Station (ISS) arrived earlier this morning – restoring this critical supply route to full operation today, Sunday, Oct. 23.
The Orbital ATK Cygnus cargo spacecraft packed with over 2.5 tons of supplies was berthed to an Earth-facing port on the Unity module of the ISS at 10:53 a.m. EDT.
The Cygnus OA-5 mission took flight atop the first re-engined Orbital ATK Antares rocket during a spectacular Monday night liftoff on Oct. 17 at 7:40 p.m. EDT from the Mid-Atlantic Regional Spaceport pad 0A at NASA’s Wallops Flight Facility on Virginia’s picturesque Eastern shore.
Antares pair of RD-181 first stage engines were firing with some 1.2 million pounds of liftoff thrust and brilliantly lighting up the crystal clear evening skies in every direction to the delight of hordes of spectators gathered from near and far.
Cygnus is loaded with over 5,100 pounds of science investigations, food, supplies and hardware for the space station and its six-person multinational crew.
This was the first Antares launch from Virginia in two years following the rockets catastrophic failure just moments after liftoff on Oct. 28, 2014, which doomed the Orb-3 resupply mission to the space station – as witnessed by this author.
Orbital ATK’s Antares commercial rocket had to be overhauled with the completely new RD-181 first stage engines- fueled by LOX/kerosene – following the destruction of the Antares rocket and Cygnus supply ship two years ago.
The 14 story tall commercial Antares rocket launched for the first time in the upgraded 230 configuration – powered by a pair of the new Russian-built RD-181 first stage engines.
The RD-181 replaces the previously used AJ26 engines which failed shortly after the last liftoff on Oct. 28, 2014 and destroyed the rocket and Cygnus cargo freighter.
The launch mishap was traced to a failure in the AJ26 first stage engine turbopump and forced Antares launches to immediately grind to a halt.
After a carefully choreographed five day orbital chase, Cygnus approached the million pound orbiting outpost this morning.
After it was within reach, Expedition 49 Flight Engineers Takuya Onishi of the Japan Aerospace Exploration Agency and Kate Rubins of NASA carefully maneuvered the station’s 57.7-foot (17.6-meter) Canadian-built robotic arm to reach out and capture the Cygnus OA-5 spacecraft at 7:28 a.m. EDT.
It was approximately 30 feet (10 meters) away from the station as Onishi and Rubins grappled the resupply ship with the robotic arms snares.
After leak checks, the next step is for the crew to open the hatches between the pressurized Cygnus and Unity and begin unloading the stash aboard.
The 21-foot-long (6.4-meter) spacecraft is scheduled to spend about five weeks attached to the station. The crew will pack the ship with trash and no longer needed supplies and gear.
It will be undocked in November and then conduct several science experiments, including the Saffire fire experiment and deploy cubesats.
Thereafter it will be commanded to conduct the customary destructive re-entry in Earth’s atmosphere.
The Cygnus spacecraft for the OA-5 mission is named the S.S. Alan G. Poindexter in honor of former astronaut and Naval Aviator Captain Alan Poindexter.
Under the Commercial Resupply Services (CRS) contract with NASA, Orbital ATK will deliver approximately 28,700 kilograms of cargo to the space station. OA-5 is the sixth of these missions.
Watch for Ken’s continuing Antares/Cygnus mission and launch reporting. He was reporting from on site at NASA’s Wallops Flight Facility, VA during the launch campaign.
Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.
We often hear how the Moon’s appearance hasn’t changed in millions or even billions of years. While micrometeorites, cosmic rays and the solar wind slowly grind down lunar rocks, the Moon lacks erosional processes such as water, wind and lurching tectonic plates that can get the job done in a hurry.
Remember Buzz Aldrin’s photo of his boot print in the lunar regolith? It was thought the impression would last up to 2 million years. Now it seems that estimate may have to be revised based on photos taken by the Lunar Reconnaissance Orbiter (LRO) that reveal that impacts are transforming the surface much faster than previously thought.
The LRO’s high resolution camera, which can resolve features down to about 3 feet (1-meter) across, has been peering down at the Moon from orbit since 2009. Taking before and after images, called temporal pairs, scientists have identified 222 impact craters that formed over the past 7 years. The new craters range from 10 feet up to 141 feet (3-43 meters) in diameter.
By analyzing the number of new craters and their size, and the time between each temporal pair, a team of scientists from Arizona State University and Cornell estimated the current cratering rate on the Moon. The result, published in Nature this week, was unexpected: 33% more new craters with diameters of at least 30 feet (10 meters) were found than anticipated by previous cratering models.
Similar to the crater that appeared on March 17, 2013 (above), the team also found that new impacts are surrounded by light and dark reflectance patterns related to material ejected during crater formation. Many of the larger impact craters show up to four distinct bright or dark reflectance zones. Nearest to the impact site, there are usually zone of both high and low reflectance. These two zones likely formed as a layer of material that was ejected from the crater during the impact shot outward to about 2½ crater diameters from the rim.
From analyzing multiple impact sites, far flung ejecta patterns wrap around small obstacles like hills and crater rims, indicating the material was traveling nearly parallel to the ground. This kind of path is only possible if the material was ejected at very high speed around 10 miles per second or 36,000 miles per hour! The jet contains vaporized and molten rock that disturb the upper layer of lunar regolith, modifying its reflectance properties.
How LRO creates temporal pairs and scientists use them to discover changes on the moon’s surface.
In addition to discovering impact craters and their fascinating ejecta patterns, the scientists also observed a large number of small surface changes they call ‘splotches’ most likely caused by small, secondary impacts. Dense clusters of these splotches are found around new impact sites suggesting they may be secondary surface changes caused by material thrown out from a nearby primary impact. From 14,000 temporal pairs, the group identified over 47,000 splotches so far.
Based on estimates of size, depth and frequency of formation, the group estimated that the relentless churning caused by meteoroid impacts will turn over 99% of the lunar surface after about 81,000 years. Keep in mind, we’re talking about the upper regolith, not whole craters and mountain ranges. That’s more than 100 times faster than previous models that only took micrometeorites into account. Instead of millions of years for those astronaut boot prints and rover tracks to disappear, it now appears that they’ll be wiped clean in just tens of thousands!