The Zambezi River in Namibia floods the Caprivi plain in this picture captured from Sentinel-1A. The satellite was not only noted for its high resolution of the flood, but its ability to send the image quickly -- it was downloaded only two hours after it was acquired. Credit: European Space Agency
After dodging space debris and living to tell the tale, Sentinel-1A is now being put through its paces for its primary mission: to beam back pictures of the Earth as quickly as possible, to provide officials with the information they need during natural disasters or weather events.
The picture above gives a taste of what the European satellite will do when it’s fully commissioned. The picture of flooding in Namibia was downloaded only two hours after acquisition and then made available generally less than an hour after that, the European Space Agency said. Not only that, believe it or not — the view was socked in by cloud when the image was taken.
“Sentinel-1A’s ability to ‘see’ through cloud and rain and in pitch darkness make it particularly useful for monitoring floods and for offering images for emergency response,” the European Space Agency stated. “In fact, this area of the Caprivi plain was shrouded in thick cloud when the satellite acquired the image on 13 April.”
The satellite can also monitor long-term but serious weather events such as climate change, as the picture below of Pine Island Glacier shows.
The northern part of the Antarctic Peninsula as seen from Sentinel-1 on April 13, 2014. Credit: ESA
“As well as monitoring glaciers, Sentinel-1A is poised to generate timely maps of sea-ice conditions, particularly for the increasingly busy Arctic waters,” ESA stated. “Images from its advanced radar can be used to distinguish clearly between the thinner more navigable first-year ice and the hazardous, much thicker multiyear ice to help assure safe year-round navigation in polar waters.”
A graphic comparing the asteroid that killed the dinosaurs, with an asteroid newly believed to have struck the Earth 3.26 billion years ago. Below the asteroids is a graphic showing how big the craters would have been. Credit: American Geophysical Union
Early in Earth’s history, a killer asteroid smashed a hole in our planet about 300 miles (500 kilometers) wide, which is greater than the driving distance between Washington and New York City, a new study says. The space rock set off a cycle of destruction that sounds like your worst nightmares.
That one reported collision 3.26 billion years ago made the Earth tremble, created earthquakes and set off tsunamis that were thousands of meters deep, according to a new research team. The size of this estimated destructor? About 37 kilometers (23 miles) wide, or about three times as wide as the asteroid that killed the dinosaurs 65 million years ago.
“We knew it was big, but we didn’t know how big,” stated co-author Donald Lowe, a geologist at Stanford University and a co-author of the study, of the asteroid.
Evidence of the huge impact — the first one mapped from so long ago — comes from an examination of the Barberton Greenstone Belt in South Africa, which shows rocks and “crustal fractures” that are consistent with the idea of a giant impact, the scientists said. (The asteroid struck the Earth thousands of miles away, but where isn’t known.)
An satellite view of Barberton greenstone around the town of Barberton, South Africa. Credit: NASA Earth Observatory/Landsat/U.S. Geological Survey/Jesse Allen
If confirmed, the asteroid could have been one of many that smacked Earth during what is known as the Late Heavy Bombardment period, which pummeled the solar system with debris between 3 billion and 4 billion years ago.
This one event could even have changed the way the Earth formed, the scientists added. For example, it could have been broken up our planet’s crust and tectonics, creating the plate tectonics we are familiar with today.
You can read more about the research in the journal Geochemistry, Geophysics, Geosystems. It was led by Norman Sleep, a geophysicist at Stanford University.
Atlas V rocket and Super Secret NROL-67 intelligence gathering payload following rollout to Space Launch Complex 41 at Cape Canaveral Air Force Station, FL, on March 24, 2014. Credit: Ken Kremer - kenkremer.com
The Florida Space Coast is about to ignite with a doubled barreled dose of spectacular rocket launches from Cape Canaveral over the next few days that were suddenly postponed two weeks ago amidst final launch preparations when an electrical short completely knocked out use of the US Air Force’s crucial tracking radar that is mandatory to insure public safety.
A pair of liftoffs vital to US National Security and NASA/SpaceX are now slated for April 10 and April 14 from Cape Canaveral Air Force Station after revitalizing the radar systems.
The tracking radar is an absolutely essential asset for the Eastern Range that oversees all launches from Cape Canaveral Air Force Station and the Kennedy Space Center in Florida.
The United Launch Alliance Atlas V is now slated to launch on Thursday, April 10 at 1:45 p.m. EDT.
Artwork for Super Secret NROL-67 payload launching on Atlas V rocket. Credit: NRO/ULA
The SpaceX Falcon 9 is slated to launch on Monday, April 14 at 4:58 p.m. EDT.
The Falcon 9 is lofting a SpaceX Dragon cargo ship and delivering some 5000 pounds of science experiments and supplies for the six man space station crew – under a resupply contract with NASA.
The pair of liftoffs of the Atlas V and Falcon 9 boosters for the NRO and SpaceX/NASA had been slated just days apart on March 25 and March 30, respectively.
Falcon 9 and Dragon static fire test on March 8, 2014. Credit: SpaceX
I was on site at Cape Canaveral Launch Pad 41 photographing the Atlas V rocket carrying the NRO payload in anticipation of the launch.
Shortly thereafter a fire of unexplained origin in the radar equipment unexpected occurred and knocked the tracking radar off line. When no quick fix was possible, both launches were delayed indefinitely pending repairs.
“The tracking radar experienced an electrical short, overheating the unit and rendering the radar inoperable,” said the USAF in a statement I received from the 45th Space Wing that controls the critical launch control systems, communications, computers and radar elements at the Eastern Range.
On Monday, April 7, the Air Force announced that range repairs were on target and that a retired, inactive radar had been brought back online.
“A radar that was previously in standby status has been brought back to operational status while the repair work is being accomplished,” said the USAF in a statement.
A fully functional tracking radar is an absolute requirement to ensure the success and safety of every rocket launch.
Insufficient maintenance and antiquated equipment due to a lack of US government funding and investment in infrastructure may be at fault for the electrical short.
The Eastern range radar must function perfectly in order to destroy any rocket in a split second in the event it abruptly veers off course towards the nearby populated areas along the Florida Space Coast.
The Atlas V rocket was rolled out earlier today to Space Launch Complex 41 in preparation for Thursday’s NROL-67 launch. The weather forecast shows a 90 percent chance of favorable weather conditions for launch.
The Dragon spacecraft, filled with about 4,600 lbs of cargo bound for the space station, is mated with Falcon 9. Credit: SpaceX
Stay tuned here for Ken’s continuing Atlas V NROL 67, SpaceX, Orbital Sciences, commercial space, Orion, Chang’e-3, LADEE, Mars rover, MAVEN, MOM and more planetary and human spaceflight news.
Learn more at Ken’s upcoming presentations at the NEAF astro/space convention, NY on April 12/13.
The NASA P-3B's shadow on sea ice off of southeast Greenland during an IceBridge survey on Apr. 9, 2013. Flying at a low altitude allows IceBridge researchers to gather detailed data. Credit: NASA / Jim Yungel
How much is the polar ice melting, and how are the sheets being affected by climate change? These are some of the questions that NASA’s Operation IceBridge seeks to answer. You can see a quick overview of the mission in the video above.
“IceBridge, a six-year NASA mission, is the largest airborne survey of Earth’s polar ice ever flown,” NASA stated in the YouTube description accompanying the video.
“It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves and sea ice. These flights will provide a yearly, multi-instrument look at the behavior of the rapidly changing features of the Greenland and Antarctic ice,” the agency added.
The aerial survey is intended to supplement information from NASA’s Ice Cloud and Land Elevation Satellite (ICESat), which has been orbiting Earth since 2003, and the forthcoming ICESat-2 that is expected to launch in early 2016.
Just in case you aren’t already in French Guiana, here’s your chance to watch a European environment radar satellite take a rocket ride. Tune into the webcast above to see Sentinel-1A’s launch. If the schedule holds, the launch will be at 5:02 p.m. EDT (9:02 p.m. UTC) on April 3, 2014. Watch live above!
ESA heralds Sentinel-1 as a “new era in Earth observation” because the satellite duo (yes, it will be eventually two satellites) will vastly improve their ability to send out information on natural disasters and quick-moving Earth observation events. Sentinel-1 will in fact be the first of a satellite series feeding into the same information system.
Once the second half of the duo launches in 2016, Sentinel-1 will have a wide swath of geographical coverage, could go to the same areas quickly, and would send data out quickly. Repeatable and rapid Earth observations will bring data quickly into the hands of the authorities who could make decisions about evacuations and other things.
This information will be fed into Copernicus, a new system that will co-ordinate all of the Sentinel satellites for users to gain information.
“The Sentinels will provide a unique set of observations, starting with the all-weather, day and night radar images from Sentinel-1 to be used for land and ocean services,” ESA stated in an explanation about Copernicus.
“Sentinel-2 will deliver high-resolution optical images for land services and Sentinel-3 will provide data for services relevant to the ocean and land. Sentinel-4 and Sentinel-5 will provide data for atmospheric composition monitoring from geostationary and polar orbits, respectively.”
And here are a few of the other applications ESA foresees it would be useful for: sea-ice measurements, looking for oil spills, tracking ships, flagging land with “motion risks” and also doing mapping for the forestry industry.
As far as the webcast, there’s a schedule of speeches and events beforehand at the European Space Agency’s space operations center in Darmstadt, Germany. Be sure to tune in a bit earlier at 3:30 p.m. EST (7:30 p.m. UTC) to see the ceremonies.
An image mosaic of ice breaking up in the Arctic Ocean's Canada Basin on March 28, 2014. Image taken by Operation IceBridge's Digital Mapping System. Credit: Digital Mapping System/NASA Ames
The Arctic melt season is averaging five days longer with each passing decade, a new study by NASA and the National Snow and Ice Data Center reveals. And with more ice-free days, the water (which is darker than the surrounding ice) is absorbing the sun’s heat and accelerating the process. This means the Arctic ice cap has shrank by as much as four feet.
The sobering news comes following a study of satellite data from 1979 to 2013. By the end of this century, scientists believe, there will be a fully melted Arctic Ocean during the entire summer. And the news also comes in the same week that the Intergovernmental Panel on Climate Change (IPCC) released its own report on global warming.
“The Arctic is warming and this is causing the melt season to last longer,” stated Julienne Stroeve, a senior scientist at NSIDC, Boulder and lead author of a new study. “The lengthening of the melt season is allowing for more of the sun’s energy to get stored in the ocean and increase ice melt during the summer, overall weakening the sea ice cover.”
The research further revealed that solar radiation absorption depends on when the melt season begins; this is particularly true since the sun rises higher during the spring, summer and fall than in the winter. It’s still hard to predict when things will melt or freeze, however, since this depends on weather.
“There is a trend for later freeze-up, but we can’t tell whether a particular year is going to have an earlier or later freeze-up,” Stroeve said. “There remains a lot of variability from year to year as to the exact timing of when the ice will reform, making it difficult for industry to plan when to stop operations in the Arctic.”
Data was collected with NASA’s (long deceased) Nimbus-7 Scanning Multichannel Microwave Radiometer and instruments aboard Defense Meteorological Satellite Program spacecraft.
“When ice and snow begin to melt, the presence of water causes spikes in the microwave radiation that the snow grains emit, which these sensors can detect,” NASA stated. “Once the melt season is in full force, the microwave emissivity of the ice and snow stabilizes, and it doesn’t change again until the onset of the freezing season causes another set of spikes.”
The research has been accepted for publication in Geophysical Research Letters.
Tsunami propagation forecast following the April 1, 2014 earthquake off the coast of Chile. Credit: NOAA's Pacific Tsunami Warning Center.
An 8.2-magnitude earthquake off the coast of northern Chile on April 1, 2014 was followed by at least a dozen significant aftershocks, including one with a magnitude of 6.2. This activity initially generated tsunami warnings across the Pacific, but the warnings were later canceled except for the coastal regions of Chile and Peru, according to NOAA’s Pacific Tsunami Warning Center.
Tsunami waves of more than 2 meters (6 feet) came ashore on the coast of Pisagua, Chile and 2.13 meter (7-foot) waves were reported in Iquique, Chile, according to the PTWC. The U.S Geological Survey reported the quake major quake was centered offshore about 96 km (60 miles) northwest of Iquique, at a depth of 20 km (12.5 miles).
At the time of this writing, the quake has reportedly caused only minor damage in Chile with two possible casualties, but several people are missing. There was a small landslide, several large fires, along with damaged boats and some flooding in Iquique due to the tsunami, according to Earthquakereport.com.
Chile’s National Emergency Office tweeted Tuesday night that it was asking everyone to evacuate the country’s coastal areas, and reports in the news and on social media said that the evacuations were orderly.
This earthquake follows several weeks of seismic activity in the South American Pacific region. On March 16, a 6.7-magnitude earthquake struck 60 km (37 miles)northwest of Iquique, according to the USGS. A 6.1-magnitude hit the same area one week later.
Chile is one of the most seismically active countries in the world, and is along the so-called “Ring of Fire,” an arc of volcanoes and fault lines circling the Pacific Basic that is prone to frequent earthquakes and volcanic eruptions.
The strongest earthquake ever recorded on Earth also took place happened in Chile. A magnitude-9.5 quake in 1960 killed more than 5,000 people. The most recent large quake in February 2010 hit central and southern Chile with a magnitude of 8.8, followed by a tsunami that left more than 500 dead with $30 billion in damage to property.
Tsunami waves travel about 800 km per hour, (500 miles per hour). That seems fast, but compared to a seismic wave it is slow. The speed of seismic wave, the P wave (or primary wave, which is the fastest kind of seismic wave) is about 8 km per second, or 30,000 km per hour.
You can compare a tsuanmi wave to the speed of a jet plane.
But while scientists can predict the speed and the direction of tsunamis fairly well, the height at a given location is can be very hard to predict, according to Anne Sheehan from the University of Colorado at Boulder, who spoke to Universe Today for a previous article about the science behind a tsunami.
“For predicting an ensuing tsunami, to have data on the earthquake itself — getting its epicenter located and knowing its size as accurately as possible plays a big role,” she said, “and the USGS plays a big role in getting that information out as quickly as possible.
Update: Here’s an animation from NOAA of the prediction of the tsunami following the April 1 quake in Chile:
The Kavir desert in Iran, as seen from the International Space Station on Feb. 14, 2014. Credit: NASA.
At first glance, this beautiful swirling view appears like clouds above a large body of water or possibly the eddies of ocean currents. Surprisingly, this is a desert, the Kavir desert (Dasht-e Kavir – literally ‘desert of salt-marsh’) in Iran, and the image was taken by one of the astronauts on the International Space Station.
An annotated version of the image of the Kavir Desert. Credit: NASA
You’ll notice the striking pattern of parallel lines and sweeping curves. NASA explains that the lack of soil and vegetation in this desert allows the geological structure of the rocks to appear quite clearly from space and the patterns result from the gentle folding of numerous, thin layers of rock. “Later erosion by wind and water cut a flat surface across the dark- and light-colored folds, not only exposing hundreds of layers but also showing the shapes of the folds. The pattern has been likened to the layers of a sliced onion,” NASA says.
While a quick look at Google Maps (see image below) shows that most of the region does appear to be sand-colored brown from space, there are regions with blue tints due to the folds and layers in the exposed surfaces, and the image is actually just a small part of the 77,600 square kilometer (30,000 sq mile) desert. It’s a bit difficult to get a sense of scale in the top image since there are no fields or roads to provide a reference, but the width of the image is about 105 kilometers (65 miles).
There is some water in this area, however. In the center of the NASA image is a dark s-shaped region is a lake and a small river snakes across the bottom of the image. The irregular, light-toned patch just left of the lake is a sand sheet thin enough to allow the underlying rock layers to be detected.
Screenshot of Google Maps showing the Kavir Desert in Iran.
United Launch Alliance Atlas V rocket – powered by Russian made RD-180 engines – and Super Secret NROL-67 intelligence gathering payload poised for launch at Space Launch Complex 41 at Cape Canaveral Air Force Station, FL, in March 2014. Credit: Ken Kremer – kenkremer.com
CAPE CANAVERAL AIR FORCE STATION, FL – The sudden and unexpected outage of a crucial tracking radar that is mandatory to insure public safety, has forced the scrub of a pair of launches planned for this week from Cape Canaveral, FL, that are vital to US National Security, United Launch Alliance, SpaceX and NASA.
The tracking radar is an absolutely essential asset for the Eastern Range that oversees all launches from Cape Canaveral Air Force Station and the Kennedy Space Center on the Florida Space Coast.
The pair of liftoffs for the National Reconnaissance Office (NRO) and SpaceX/NASA had been slated just days apart on March 25 and March 30.
Urgent repairs are in progress.
Both launches have now been postponed for a minimum of 3 weeks, according to a statement I received from the 45th Space Wing of the US Air Force that controls the critical launch control systems, communications, computers and radar elements.
An Atlas V rocket carrying the super secret NROL-67 intelligence gathering spy satellite for the National Reconnaissance Office and a SpaceX Falcon 9 rocket carrying a Dragon cargo freightor bound for the International Space Station (ISS) were both in the midst of the final stages of intensive pre-launch processing activities this week.
The Eastern range radar was apparently knocked out by a fire on March 24, a short time after the early morning rollout of the United Launch Alliance (ULA) Atlas V rocket to the launch pad at Space Launch Complex 41 on Cape Canaveral.
“An investigation revealed a tracking radar experienced an electrical short, overheating the unit and rendering it inoperable,” according to today’s explanatory statement from the USAF 45th Space Wing.
“The outage resulted in an inability to meet minimum public safety requirements needed for flight, so the launch was postponed.”
A SpaceX spokesperson likewise confirmed to me that their launch was also on hold.
Artwork for Super Secret NROL-67 payload launching on Atlas V rocket. Credit: NRO/ULA
A fully functional tracking radar is an absolute requirement to ensure the success and safety of any launch.
The range radar must also be functioning perfectly in order to destroy the rocket in a split second in the event it veers off course to the nearby heavily populated areas along the Space Coast.
Myself and other space journalists had been working at Pad 41 on March 24 and setting up our remote cameras to capture spectacular up close views of the blastoff that had then been scheduled for March 25.
Atlas V rocket and Super Secret NROL-67 intelligence gathering payload following rollout to Space Launch Complex 41 at Cape Canaveral Air Force Station, FL, on March 24, 2014. Credit: Ken Kremer – kenkremer.com
Insufficient maintenance and antiquated equipment due to a lack of US government funding and investment in infrastructure may be implicated.
The Air Force is also looking into the feasibility of reviving an inactive radar as a short term quick fix.
But in order to use the retired backup system, it will also have to re-validated to ensure utility and that all launch control and public safety requirements are fully met.
Simultaneously, the engineering team is recalculating launch trajectories and range requirements.
Such a revalidation process will also require an unknown period of time.
The full impact of putting these two launches on hold for the NRO and SpaceX is not known at this time.
An upgraded SpaceX Falcon 9 rocket with Dragon cargo capsule bound for the ISS is slated to launch on March 16, 2014 from Space Launch Complex 40 at Cape Canaveral, FL. File photo. Credit: Ken Kremer/kenkremer.com
Furthermore, the USAF will need to determine the downstream scheduling impact on the very busy manifest of all of the remaining launches throughout 2014 – averaging more than one per month.
Neither the NRO nor NASA and SpaceX have announced firm new launch dates.
The earliest possible Atlas V launch date appears to be sometime in mid-April, but that assessment can change on a dime.
In the meantime, personnel from the 45th Space Wing will continue to work diligently to repair the range radar equipment as quickly as possible.
ULA engineers also rolled the Atlas V rocket back to its processing hanger until a new launch target date is set.
SpaceX likewise awaits a target launch date for the Dragon CRS-3 cargo mission packed with some 5000 pounds of science experiments and supplies for the six man station crew.
It seems likely that the next Orbital Sciences Antares/Cygnus launch to the ISS will also have to be postponed since Dragon and Cygnus berth at the same station port.
Space journalists and photographers pose at Launch Pad 41 during camera setup with the Atlas V rocket slated to loft super secret NROL-67 spy satellite to orbit; Ben Cooper, Don Hludiak, Mike Howard, Mike Deep, Matthew Travis, Hap Griffin, Jeff Seibert, Alan Walters, Julian Leek, Ken Kremer/Universe Today at right. Credit: Ken Kremer – kenkremer.com
Stay tuned here for Ken’s continuing Atlas V NROL 67, SpaceX, Orbital Sciences, commercial space, Orion, Chang’e-3, LADEE, Mars rover, MAVEN, MOM and more planetary and human spaceflight news.
Learn more at Ken’s upcoming presentations at the NEAF astro/space convention, NY on April 12/13 and at Washington Crossing State Park, NJ on April 6. Also at the Quality Inn Kennedy Space Center, Titusville, FL, March 29.
An extra-tropical cyclone seen off the coast of Japan, March 10, 2014, by the GPM Microwave Imager. The colors show the rain rate: red areas indicate heavy rainfall, while yellow and blue indicate less intense rainfall. The upper left blue areas indicate falling snow. Credit: NASA/JAXA
KENNEDY SPACE CENTER, FL – Weather researchers worldwide now have the ability to capture unprecedented three-dimensional images and detailed rainfall measurements of cyclones, hurricanes and other storms from space on a global basis thanks to the newest Earth observing weather satellite – jointly developed by the US and Japan.
NASA and the Japan Aerospace Exploration Agency (JAXA) have now released the first images captured by their Global Precipitation Measurement (GPM) Core Observatory satellite.
GPM soared to space on Feb. 27, exactly one month ago, during a spectacular night launch from the Japanese spaceport at the Tanegashima Space Center on Tanegashima Island off southern Japan.
The newly released series of images show precipitation falling inside a vast extra-tropical cyclone cascading over a vast swath of the northwest Pacific Ocean, approximately 1,000 miles off the coast of eastern Japan.
3D view inside an extra-tropical cyclone observed off the coast of Japan, March 10, 2014, by GPM’s Dual-frequency Precipitation Radar. The vertical cross-section approx. 4.4 mi (7 km) high show rain rates: red areas indicate heavy rainfall while yellow and blue indicate less intense rainfall. Credit: JAXA/NASA
“It was really exciting to see this high-quality GPM data for the first time,” said GPM project scientist Gail Skofronick-Jackson at NASA’s Goddard Spaceflight Center in Greenbelt, Md., in a NASA statement.
“I knew we had entered a new era in measuring precipitation from space. We now can measure global precipitation of all types, from light drizzle to heavy downpours to falling snow.”
The imagery was derived from measurements gathered by GPM’s two advanced instruments: JAXA’s high resolution dual-frequency precipitation (DPR) radar instrument (Ku and Ka band), which imaged a three-dimensional cross-section of the storm, and the GPM microwave imager (GMI) built by Ball Aerospace in the US which observed precipitation across a broad swath.
“The GMI instrument has 13 channels that measure natural energy radiated by Earth’s surface and also by precipitation itself. Liquid raindrops and ice particles affect the microwave energy differently, so each channel is sensitive to a different precipitation type,” according to a NASA statement.
On March 10, 2014 the Global Precipitation Measurement (GPM) Core Observatory passed over an extra-tropical cyclone about 1,055 miles (1,700 km) east of Japan’s Honshu Island. Formed when a cold air mass wrapped around a warm air mass near Okinawa on March 8, it moved NE drawing cold air over Japan before weakening over the North Pacific. Credit: NASA/JAXA
The 3850 kilogram GPM observatory is the first satellite designed to measure light rainfall and snow from space, in addition to heavy tropical rainfall.
The data were released following check out and activation of the satellites pair of instruments.
“GPM’s precipitation measurements will look like a CAT scan,” Dr. Dalia Kirschbaum, GPM research scientist, told me during a prelaunch interview with the GPM satellite in the cleanroom at NASA’s Goddard Space Flight Center in Greenbelt, Md.
“The radar can scan through clouds to create a three dimensional view of a clouds structure and evolution.”
The $933 Million GPM observatory will provide high resolution global measurements of rain and snow every 3 hours. It is a joint venture between NASA and JAXA.
It will collect a treasure trove of data enabling the most comprehensive measurements ever of global precipitation – and across a wide swath of the planet where virtually all of humanity lives from 65 N to 65 S latitudes.
The GMI instrument has 13 channels, each sensitive to different types of precipitation. Channels for heavy rain, mixed rain and snow, and snowfall are displayed of the extra-tropical cyclone observed March 10, off the coast of Japan. Multiple channels capture the full range of precipitation. Credit: NASA/JAXA
GPM orbits at an altitude of 253 miles (407 kilometers) above Earth – quite similar to the International Space Station (ISS).
GPM is the lead observatory of a constellation of nine highly advanced Earth orbiting weather research satellites contributed by the US, Japan, Europe and India.
NASA’s next generation Global Precipitation Measurement (GPM) observatory inside the clean room at NASA Goddard Space Flight Center, MD. Technicians at work on final processing during exclusive up-close inspection tour by Universe Today. GPM launched on February 27, 2014 and will provide global measurements of rain and snow every 3 hours. Credit: Ken Kremer/kenkremer.com
Stay tuned here for Ken’s continuing GPM, Curiosity, Opportunity, Chang’e-3, SpaceX, Orbital Sciences, LADEE, MAVEN, MOM, Mars and more planetary and human spaceflight news.
Learn more at Ken’s upcoming presentations at the NEAF convention on April 12/13 and at Washington Crossing State Park, NJ on April 6. Also at the Quality Inn Kennedy Space Center, Titusville, FL, March 29.
