Flyover Video of Ceres Shows the Grandeur of Space Exploration

New Animation Takes a Colorful Flight Over Ceres Simulated view of Dwarf planet Ceres using images from NASA's Dawn spacecraft. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA.

Wow. This video will knock your socks off … at least it did mine. This new flyover video of Ceres was created using enhanced images taken by the Dawn spacecraft’s framing camera. It was produced by the camera team at the German Aerospace Center, DLR, using images from Dawn’s high-altitude mapping orbit of 900 miles (1,450 kilometers) above Ceres’ surface. The video shows a stark and stunning world.

“The viewer can observe the sheer walls of the crater Occator, and also Dantu and Yalode, where the craters are a lot flatter,” said Ralf Jaumann, a Dawn mission scientist at DLR.

The enhanced color used here helps to highlight subtle differences in the appearance of surface materials. There’s additional info at the end of the video, but for a quick reference, area with shades of blue contain younger, fresher material such as flows, pits and cracks, while brown areas clays, which, enticingly, usually form in the presence of water.

I had the chance to visit with Marc Rayman, Dawn’s chief engineer and mission director at JPL earlier this month, when I interviewed him for a book I’m working on about robotic space exploration. One thing he really stressed is that Ceres is a big place, with diverse terrain and a variety of features. This video really brings that home.

“Ceres has a surface area of 2,770,000 square kilometers … It’s a big surface and we haven’t seen all of it,” Rayman said. “It will be great to see what the new detail shows from the low altitude orbit, because those pictures will be four times better resolution than pictures we were able to get at our previous orbit.”

Dawn is now in its final and lowest mapping orbit, at about 240 miles (385 kilometers) from the surface.

This animated flight over Ceres emphasizes the most prominent craters, such as Occator, Dantu, and the tall, conical mountain Ahuna Mons.

The bright features seen in Occator Crater have been determined to be salts, which are quite reflective and look bright to our eyes (sorry no alien city lights) and the team will be providing more details and images soon.

Occator Crater (57 miles, 92 kilometers) on Ceres, home of the brightest spots on the dwarf planet, in a simulated view using Dawn images. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA.
Occator Crater (57 miles, 92 kilometers) on Ceres, home of the brightest spots on the dwarf planet, in a simulated view using Dawn images. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA.

Additional info: JPL, Dawn mission home page

Challenges We’re Overcoming Following the Challenger Accident

The crew of Challenger, lost on January 28, 1986. Credit: NASA.

It was thirty years ago, January 28, 1986, that space shuttle Challenger exploded 73 seconds into its flight, killing seven astronauts. This is a tough time of year in the history of human spaceflight, as 19 years on January 27, 1967 three astronauts died in a fire in the module of Apollo 1. Then on February 1, 2003, space shuttle Columbia disintegrated as it reentered Earth’s atmosphere, killing all seven crew members.

Remembering these events brings home the fact that even today, spaceflight remains far from routine. But over the years, what else have we learned from these tragedies?

I recently touched base with long-time NASA engineer Jerry Woodfill, whose name you may recall from our two series about Apollo 13 — 13 Things That Saved Apollo 13 and 13 More Things That Saved Apollo 13.

Christa McAuliffe. Credit: Challenger's Lost Lessons
Christa McAuliffe. Credit: Challenger’s Lost Lessons

But Jerry was also featured in an article we did in 2008. A year earlier he came across a file of papers from 1985 that proposed how teacher Christa McAuliffe’s eight lessons would be performed on orbit as part of the Challenger mission. Woodfill worked to find old videos, photographs and other materials that had been tucked away in sadness and grief following the loss of Challenger and put together lesson plans and gave them to the Challenger Center. The lessons are available on the Center’s website.

Jerry and I discussed other “lessons” that may have been learned from the tragedies, and he had some interesting ideas about paradigm shifts that have occurred over the past 30-plus years. Here are a few “old” ideas that have changed or are in the process of changing:

Civilians, especially women should not be launched on risky missions to space

The 2013 astronaut candidate class. Front row, left to right: Jessica Meir, Christina Hammock, Andrew Morgan. Back row (left to right), Anne McClain, Nicole Mann, Tyler (Nick) Hague, Josh Cassada and Victor Glover. Credit: NASA
The 2013 astronaut candidate class. Front row, left to right: Jessica Meir, Christina Hammock, Andrew Morgan. Back row (left to right), Anne McClain, Nicole Mann, Tyler (Nick) Hague, Josh Cassada and Victor Glover. Credit: NASA

We’re certainly beyond the “women can’t do what men can” in our society (for the most part, anyway), and NASA’s last class of astronauts was 50% women (4 out of 8). It did take NASA until 1978 to hire the first female astronauts.

As far as civilians being part of space flight…. that’s the whole point the pioneers of spaceflight did what they did, to try and make flying to space as routine as flying in an airplane.

“While we’re not quite there yet,” said Woodfill, “the prospects for civilian space travel is altogether more plausible. “Now we have a maturing commercial space paradigm that wholly embraces the idea of everybody someday being eligible for a trip to space.”

Woodfill also mentioned that he used to hear that some people thought the idea that a Challenger-like mission should never be attempted again.

“That is refuted by the Challenger’s Lost Lessons project in 2008 and how much these recovered lessons mean to the families of the crew,” he said, “ and to the teachers that are now using these lessons in their classrooms.”
McAuliffe’s backup, Barbara Morgan completed her space shuttle flight in 2007 as a mission specialist, doing special education activities during the mission.

Nothing good can come of such a tragedy.

“An obvious challenge to such a posture was a redesigned, safer, more robust Solid Rocket Booster system,” Woodfill said. “In fact, it led to the work-horse SRBs adapted and upgraded for the Space Launch System (SLS) which will likely take us to Mars.”

The tragedies have provided lessons to be learned. “Go-fever” has been tempered with a more analytical view of each mission and the potential risks it entails. Crew safety at NASA has become top priority. All NASA workers are told to “speak up” if they see something that might compromise any mission.

Human spaceflight is too risky.

Dr. Robert H. Goddard (second from right) and his colleagues hold a liquid-propellant rocket in 1932 at their New Mexico workshop. Credit: NASA Goddard Space Flight Center
Dr. Robert H. Goddard (second from right) and his colleagues hold a liquid-propellant rocket in 1932 at their New Mexico workshop. Credit: NASA Goddard Space Flight Center

This debate will likely continue, but ask anyone associated with spaceflight and they’ll tell you they know the risks and that it’s all worth it for what it means for humanity. You can read Neil de Grasse Tyson’s ideas about this here.

National Geographic is currently running a show they produced called “Challenger Disaster: Lost Tapes,” that shows some old footage shot at NASA following the accident. Shown is then-Vice President George H.W. Bush and astronaut and Senator John Glenn who met with NASA’s space shuttle launch team at Kennedy Space Center in Florida. Bush said he met with the families of the lost astronauts and relayed that they pleaded that the space shuttle program continue “forward full speed.”

Glenn said, in part, “We’ve had tremendous triumph. …. And with this program, we’ve succeeded. Really, if we’re honest about it, beyond our wildest dreams. I would have never thought we’d go this far without losing some people, at something where you’re going at 5 miles a second, with the heat of reentry and the complexity of a system where everything has to go right. Now, we have a tragedy that goes along with our triumphs. I guess that’s the story of mankind.”

As many have said, the future doesn’t belong to the faint of heart, and it is part of human nature to explore and push the boundaries. But there are always lessons to be learned and ideas to be challenged. That’s part of the story of humankind, too.

Find out more about the National Geographic special here.

Curiosity Sticks Her Toes in a Martian Sand Dune, Takes a Selfie

Curiosity rover 'selfie' at the Bagnold Dunes on Mars. The mosaic includes 57 images taken on Sol 1228 (January 19, 2016). Credit: NASA/JPL-Caltech/MSSS/Andrew Bodrov.

While some of us might only be dreaming of sticking our toes in the sand right about now, the Curiosity rover is actually doing so. But it’s no vacation for the rover, as she makes her way through some very unusual and striking sand dunes on Mars. The Bagnold Dune Field lies along the northwestern flank of Mt. Sharp — Curiosity’s main target for its mission — and this is the first time ever we’ve had the opportunity to do close-up studies of active sand dunes anywhere besides Earth.

Thanks to Andrew Bodrov for sharing his compilation of this 57-image mosaic ‘selfie,’ and you can play around with an interactive version below to see some great views of the dunes. The images were taken by the rover’s Mars Hand Lens Imager (MAHLI) on Sol 1228 (January 19, 2016).

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Solar Analemma 2015: A Year-Long Picture

A compilation of images of the Sun taken at the same time and place over the course of 2015, as seen from Sulmona, Abruzzo, Italy. Credit and copyright: Giuseppe Petricca.

If you took a picture of the Sun every day, always at the same hour and from the same location, would the Sun appear in the same spot in the sky? A very fine image, compiled by astrophotographer Giuseppe Petricca from Italy, proves the answer is no.

“A combination of the Earth’s 23.5 degree tilt and its slightly elliptical orbit combine to generate this figure “8” pattern of where the Sun would appear at the same time throughout the year,” said Petricca.

This pattern is called an analemma, the full version shown below:

A compilation of images of the Sun taken at the same time and place over the course of 2015, as seen from Sulmona, Abruzzo, Italy. Credit and copyright: Giuseppe Petricca.
A compilation of images of the Sun taken at the same time and place over the course of 2015, as seen from Sulmona, Abruzzo, Italy. Credit and copyright: Giuseppe Petricca.

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Will 2016 Be the Year Elon Musk Reveals his Mars Colonial Transporter Plans?

Musk wants to see his "Red Dragon" on the surface of Mars within the next 20 years. Image Credit: SpaceX

There are several space stories we’re anticipating for 2016 but one story might appear — to some — to belong in the realm of science fiction: sometime in the coming year Elon Musk will likely reveal his plans for colonizing Mars.

Early in 2015, Musk hinted that he would be publicly disclosing his strategies for the Mars Colonial Transport system sometime in late 2015, but then later said the announcement would come in 2016.

“The Mars transport system will be a completely new architecture,” Musk said during a Reddit AMA in January 2015, replying to a question about the development of MCT. “[I] am hoping to present that towards the end of this year. Good thing we didn’t do it sooner, as we have learned a huge amount from Falcon and Dragon.”

Big Rockets

As far as any details, Musk only said that he wants to be able to send 100 colonists to Mars at a time, and the “goal is 100 metric tons of useful payload to the surface of Mars. This obviously requires a very big spaceship and booster system.”

He has supposedly dubbed the rocket the BFR (for Big F’n Rocket) and the spaceship similarly as BFS.

And he wants it to be reusable, which Musk and SpaceX have said is the key to making human life multiplanetary. The recent successful return and vertical landing of the Falcon 9’s first stage makes that closer to reality than ever.

While SpaceX has no publicly shared concept illustrations as of yet, a few enthusiasts on the web have shared their visions of MCT, such as this discussion on Reddit , and the drawing below by engineer John Gardi, who recently proposed his ideas for the MCT on Reddit.

A sketch shows how the top section of the Mars Colonial Transporter might be configured. Credit: John Gardi.
A sketch shows how the top section of the Mars Colonial Transporter might be configured. Credit: John Gardi.

Most online discussions describe the MCT as an interplanetary ferry, with the spaceship built on the ground and launched into orbit in one piece and perhaps refueled in low Earth orbit. The transporter could be powered by Raptor engines, which are cryogenic methane-fueled rocket engines rumored to be under development by SpaceX.

The future line-up of Falcon rockets is compared to the famous NASA Saturn V. The first Falcon Heavy launch is planned for 2015. Raptor engines may replace and upgrade Heavy then lead to Falcon X, Falcon X Heavy and Falcon XX. The Falcon X 1st stage would have half the thrust of a Saturn V, Falcon X Heavy and XX would exceed a Saturn V's thrust by nearly 50%. (Illustration Credit: SpaceX, 2010)
The future line-up of Falcon rockets is compared to the famous NASA Saturn V. The first Falcon Heavy launch is planned for 2015. Raptor engines may replace and upgrade Heavy then lead to Falcon X, Falcon X Heavy and Falcon XX. The Falcon X 1st stage would have half the thrust of a Saturn V, Falcon X Heavy and XX would exceed a Saturn V’s thrust by nearly 50%. (Illustration Credit: SpaceX, 2010)

The Challenge of Landing Large Payloads on Mars

While the big rocket and spaceship may seem to be a big hurdle, an even larger challenge is how to land a payload of 100 metric tons with 100 colonists, as Musk proposes, on Mars surface.

As we’ve discussed previously, there is a “Supersonic Transition Problem” at Mars. Mars’ thin atmosphere does not provide an enough aerodynamics to land a large vehicle like we can on Earth, but it is thick enough that thrusters such as what was used by the Apollo landers can’t be used without encountering aerodynamic problems such as sheering and incredible stress on the vehicle.

Another fan-based illustration of the modular sections of John Gardi's MCT concept sitting on the surface of Mars. Credit: George Worthington. Used by permission.
Another fan-based illustration of the modular sections of John Gardi’s MCT concept sitting on the surface of Mars. Credit: George Worthington. Used by permission.

“Unique to Mars, there is a velocity-altitude gap below Mach 5,” explained Rob Manning from the Jet Propulsion Laboratory in our article from 2007. “The gap is between the delivery capability of large entry systems at Mars and the capability of super-and sub-sonic decelerator technologies to get below the speed of sound.”

With current landing technology, a large, heavy human-sized vehicle streaking through Mars’ thin, volatile atmosphere only has about 90 seconds to slow from Mach 5 to under Mach 1, change and re-orient itself from a being a spacecraft to a lander, deploy parachutes to slow down further, then use thrusters to translate to the landing site and gently touch down.

90 seconds is not enough time, and the airbags used for rovers like Spirit and Opportunity and even the Skycrane system used for the Curiosity rover can’t be scaled up enough to land the size of payloads needed for humans on Mars.

Artist’s rendering of a hypersonic inflatable aerodynamic decelerator technology concept. Credit: NASA.
Artist’s rendering of a hypersonic inflatable aerodynamic decelerator technology concept. Credit: NASA.

NASA has been addressing this problem to a small degree, and has tested out inflatable aeroshells that can provide enough aerodynamic drag to decelerate and deliver larger payloads. Called Hypersonic Inflatable Aerodynamic Decelerator (HIAD), this is the best hope on the horizon for landing large payloads on Mars.

The Inflatable Reentry Vehicle Experiment (IRVE-3) was tested successfully in 2012. It was made of high tech fabric and inflated to create the shape and structure similar to a mushroom. When inflated, the IRVE-3 is about 10-ft (3 meter) in diameter, and is composed of a seven giant braided Kevlar rings stacked and lashed together – then covered by a thermal blanket made up of layers of heat resistant materials. These kinds of aeroshells can also generate lift, which would allow for additional slowing of the vehicle.

“NASA is currently developing and flight testing HIADs — a new class of relatively lightweight deployable aeroshells that could safely deliver more than 22 tons to the surface of Mars,” said Steve Gaddis, GCD manager at NASA’s Langley Research Center in a press release from NASA in September 2015.

NASA is expecting that a crewed spacecraft landing on Mars would weigh between 15 and 30 tons, and the space agency is looking for ideas through its Big Idea Challenge for how to create aeroshells big enough to do the job.

With current technology, landing the 100 metric tons that Musk envisions might be out of reach. But if there’s someone who could figure it out and get it done, Elon Musk just might be that person.

Additional reading: Alan Boyle on Geekwire, GQ interview of Elon Musk.

Giveaway: One More Chance to Win the 2016 Year in Space Calendar

Still looking for the perfect calendar for 2016? Don’t start the year without the new Year In Space Wall Calendar! Published in cooperation with The Planetary Society, the large-format Wall Calendar as well as the spiral-bound Desk Calendar, both feature stunning images, fascinating facts, and plenty of room for your own notes and appointments.

Thanks to calendar creator Steve Cariddi, Universe Today has 5 more copies of the Year in Space wall calendar to giveaway.
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Earthrise Like You’ve Never Seen It Before

The Earth straddling the limb of the Moon, as seen from above Compton crater on the lunar farside, taken by the Lunar Reconnaissance Orbiter spacecraft. Credit: NASA/GSFC/Arizona State University.

Nearly 47 years ago, the crew of Apollo 8 took an image of planet Earth from the Moon that has been called “the most influential environmental photograph ever taken.” Called Earthrise, the picture represented the first time human eyes saw their homeworld come into view around another planetary body.

Now, the Lunar Reconnaissance Orbiter (LRO) has captured stunning new high-definition views of Earth and the Moon from the spacecraft’s vantage point in lunar orbit.
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Moisture Vaporators, Death Star Construction and Other Real Star Wars Tech

X-wing fighter flies by Earth? Actually, it is the ATV2 (Johannes Kepler) as it departs the ISS in 2011. Credit: NASA/Ron Garan

Remember that time an X-Wing fighter flew past the International Space Station? Or when R2D2 saved the ISS crew?

OK, yeah, those things didn’t really happen, but since the first Star Wars movie came out in 1977, there has been a lot of technology developed that mimics the science and tech from the sci-fi blockbuster films. Of course, we now have real robots in space (Robonaut), drones are now everyday items, there are actual holograms (Voxiebox and Fairy Lights) and DARPA has been developing prosthetic limbs that Luke Skywalker would totally use, called the Reliable Neural-Interface Technology (RE-NET). Plus, Boeing is building blaster guns that will use “pew-pew” sound effects from Star Wars. Seriously. The lasers are silent, and so they need to add sound to know for sure they’ve been fired.

Since we all certainly have Star Wars on the brain today (The Force Awakens opens tonight), let’s take a look at a few recent space-related developments that hint of inspiration from the movies:
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Win a Great Holiday Gift: The ‘Year in Space’ Wall Calendar

What’s the perfect holiday gift for any space fan? It’s the 2016 version of Steve Cariddi’s amazing Year in Space Wall Calendar, which is now available to order. And thanks to Steve, Universe Today has another 5 copies to give away!

This calendar is huge, and is full of amazing color images, daily space facts, historical references, and it even shows you where you can look in the sky for all the best astronomical sights.

This is a gorgeous wall calendar that has over 120 beautiful photos of space, and at 16 inches by 22 inches, it is much larger than other wall calendars. It has great illustrations and information that every space fan will appreciate.

For our giveaway, to be entered into the drawing, just put your email address into the box at the bottom of this post (where it says “Enter the Giveaway”) before Monday, December 21, 2015.
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Watch Fast and Furious All-sky Aurora Filmed in Real Time

Screen shot of video from aurora in Norway from November 2015. Credit: Thierry Legault.

If seeing the Northern or Southern Lights hasn’t been crossed off your bucket list yet, this video is the next best thing to seeing the aurora live. Astrophotographer extraordinaire Thierry Legault has captured spectacular views of the Aurora Borealis from Norway, filmed in real time.

“I was in Norway in early November,” Thierry told Universe Today, “this was my 5th stay and really the best one, with incredible auroras. At moments they were so large and fast that we didn’t know where to look.” He added they were “totally hypnotic.”

The 16-minute video includes 6 of the best sequences Legault captured. “I included the start and finish of the sequences to show their behavior to people who have never witnessed them,” he said. “The auroras seem to be alive, sometimes like snakes or rivers.”

Legault used a Sony Alpha 7s, which he says is the only camera able to record video like this in such lighting. The video is recorded at 25 frames a second.

For the best view of the video, switch to full HD mode (1080p) and full screen.

Legault has been going to Norway annually to see the aurora. Here are the views he captured last year.

See more of Legault’s work at his website. He has technical pages there with advice for capturing the night sky. He provides more details and tips in his excellent book, Astrophotography.