Elizabeth Howell is the senior writer at Universe Today. She also works for Space.com, Space Exploration Network, the NASA Lunar Science Institute, NASA Astrobiology Magazine and LiveScience, among others. Career highlights include watching three shuttle launches, and going on a two-week simulated Mars expedition in rural Utah. You can follow her on Twitter @howellspace or contact her at her website.
A virtual-reality view of what it would look like if you were floating away from the International Space Station. Credit: European Space Agency (YouTube)
You wanna talk about fear? This view would likely be many people’s worst nightmare — being in a spacesuit, untethered, floating away from the International Space Station and its relative safety. NASA has astronauts covered for this Gravity-type scenario, however, with a sort of jet backpack that can send astronauts back to safety.
A new video featuring European Space Agency astronaut Alexander Gerst (also embedded below) explains the steps an astronaut would take to swing back to safety. “We actually train how to use that in the virtual reality lab,” he said shortly after the video showed an astronaut floating away.
The key lies in a system called SAFER (Simplified Aid for EVA Rescue), which Gerst has practiced on numerous times (virtually) in preparation for his flight in May, which could involve spacewalks if NASA addresses a spacesuit water leak problem in time.
“You have to train it for a while to operate and actually come back, and not miss the station and fly into the blackness of space,” Gerst said.
An astronaut floating away from the International Space Station in virtual-reality training for emergencies. Credit: European Space Agency/YouTube (screenshot)
The Russian Orlan spacesuit (which Gerst is also trained on) does not have such a system, but Roscosmos gets around that by having a different procedure for spacewalking than the Americans. The Russians mandate a minimum of two attachment points to station at all times, whether it’s a pair of tethers or a tether and a gripped hand.
Gerst emphasizes a floating away scenario is unlikely, in either case — it would involve losing the anchor, losing the tether and also losing your grip all at the same time. While this has never actually happened, NASA did test the SAFER system in space on STS-64 in 1994 with a crew member standing by on the Canadarm robotic arm if something went wrong. In 2000, two astronauts aboard STS-92 each did a 50-foot flight with the system.
In 2006, the SAFER system got a little loose on the back of astronaut Piers Sellers, necessitating a tether fix. NASA emphasized that the system was not in danger of being lost.
You can view the section on SAFER in the video below at around 6 minutes. Gerst recorded this as a summary of his training ahead of Expedition 40/41, which lifts off in May.
As of 2014, NASA and Boeing are developing a propellant tank made of composite materials to hold cryogenic (low-temperature) gases in space. Initially slated for a 2018 test flight, NASA's 2015 budget will keep these tanks on the ground for the foreseeable future. Credit: NASA/MSFC/Emmett Given
A lighter and stronger “game-changing” tank that could have flown in space in a few years will be tested on the ground only, at least for now, according to the NASA budget and a few reports.
“Cryogenic Propellant Storage and Transfer will reformulate from a flight demonstration mission into a series of large-scale ground demonstrations supportive of future exploration propulsion needs and upgraded versions of SLS,” the agency stated, which could leave the door open for future tests in space.
The information is mentioned on Page 336 of the 713-page budget request document NASA released earlier this month. The budget is not finalized and is subject to approval from Congress. More high-profile cuts include the SOFIA airborne telescope and the Opportunity Mars rover mission.
The cryogenic change was mentioned in a few news reports, and then highlighted in a press release today (Thursday) from an advocacy group called the Space Development Steering Committee, who says these tanks would have been good for space-based refueling stations.
“Instead of trying out technologies designed for space where they count — in space — space gas station technologies are now going to be tested down here on Earth, where we already know how to make them function,” SDSC’s press release read. “Down here where we do not face the challenges of weightlessness and vacuum. Down here where it’s useless.”
The SDSC includes the heads of the National Space Society, the Space Frontier Foundation, and the Mars Society, plus past astronauts and former NASA employees (among others). In November, the committee released an unfunded gas-tanks-in-space proposal to fuel missions to Mars.
The robotic Canadarm2 is routinely used to berth spacecraft to the International Space Station, such as SpaceX's Dragon. Credit: NASA
When there’s a Dragon spacecraft coming your way at the International Space Station, you’d better be ready to grapple it with a robotic arm. For if there’s a crash, you will face “a very bad day”, as astronaut David Saint-Jacques points out in this new video (also embedded below the jump).
That’s why the Canadian (along with European Space Agency astronaut Andreas Mogensen) was doing robotics training this month at the Canadian Space Agency headquarters near Montreal. The most terrifying thing for astronauts must be the limited view as they do delicate maneuvers with the multi-million dollar Canadarm2.
“All you’ve got, really, while you’re working, is this workstation,” Saint-Jacques said. “You’ve got a couple of camera views to work from. You’ve got your hand controllers to move the arm, and you’ve got some computer displays, and a bunch of switches here on the left.”
“That’s all you’ve got,” he added. “You’ve really got to think ahead: how you’re going to maneuver this arm without crashing into anything.”
The video is the latest in a training series by Mogensen, who will go to the International Space Station in 2015. Saint-Jacques — a fellow 2009 astronaut class selectee — has not been assigned to a flight yet (at least publicly).
The first Canadarm, which cost about $100 million in late 1970s dollars, flew on the second shuttle flight in 1981. Canadarm2 was constructed for space station construction in the 2000s, and is still used today for spacewalks.
Berthing spacecraft is reportedly not what it was originally designed for, but the robotic arm has proved an able tool to pick up the Dragon spacecraft and other visitors to the station.
Canadian astronaut David Saint-Jacques at the simulator used to train astronauts on Canadarm2, a robotic arm used on the International Space Station. The facility is located at the Canadian Space Agency near Montreal, Canada. Credit: Andreas Mogensen/YouTube (screenshot)
Chris Hadfield during an EVA in 2001. Credit: NASA
“There is no problem so bad that you can’t make it worse.” So with that old astronaut principle in mind, what is the best reaction to take when your eyes become blinded while you’re working on the International Space Station, in no more protection than with a spacesuit?
The always eloquent Canadian (retired) astronaut Chris Hadfield — commander of Expedition 35 — faced this situation in 2001. He explains the best antidotes to fear: knowledge, practice and understanding. And in this TED talk uploaded this week, he illustrates how to conquer some dangers in space with the simple analogy of walking into a spiderweb.
Say you’re terrified of spiders, worried that one is going to poison you and kill you. The first best thing to do is look at the statistics, Hadfield said. In British Columbia (where the talk was held), there is only one poisonous spider among hundreds. In space, the odds are grimmer: a 1 in 9 chance of catastrophic failure in the first five shuttle flights, and something like 1 in 38 when Hadfield took his first shuttle flight in 1995 to visit the space shuttle Mir.
So how do you deal with the odds? For spiders, control the fear, walk through spiderwebs as long as you see there’s nothing poisonous lurking. For space? “We don’t practice things going right, but we practice things going wrong, all the time so you are always walking through those spiderwebs,” Hadfield said.
Be sure to watch the talk to the end, as Hadfield has a treat for the audience. And as always, listening to Hadfield’s descriptions of space is a joy: “A self propelled art gallery of fantastic changing beauty that is the world itself,” is among the more memorable phrases of the talk.
TED, a non-profit that bills itself as one that spreads ideas, charged a hefty delegate fee for attendees at this meeting (reported at $7,500 each) but did free livestreaming at several venues in the Vancouver area. It also makes its talks available on the web for free.
Hadfield rocketed to worldwide fame last year after doing extensive social media and several concerts from orbit.
Retired Canadian astronaut Chris Hadfield at a TED talk near Vancouver, British Columbia in 2014. Credit: TED/Sapling Foundation (screenshot)
At right, a new gully appears in pictures of the same region of Terra Sirenum on Mars. The picture at left was taken in November 2010, and the right in May 2013. Credit: NASA/JPL-Caltech/Univ. of Arizona
Check out the groove! In the blink of a geological lifetime, a new gully has appeared on the planet Mars. These images from NASA’s Mars Reconnaissance Orbiter show a new channel in the southern hemisphere region of Terra Siernum that appeared between November 2010 and May 2013.
While there’s a lot of chatter about water on Mars, this particular feature is likely not due to that liquid, the agency added.
“Gully or ravine landforms are common on Mars, particularly in the southern highlands. This pair of images shows that material flowing down from an alcove at the head of a gully broke out of an older route and eroded a new channel,” NASA stated.
It’s unclear in what season the activity occurred because the observations took place more than a Martian year apart, NASA added. These ravines tend to happen in the southern highlands and other mid-latitude regions on Mars.
“Before-and-after HiRISE pairs of similar activity at other sites demonstrate that this type of activity generally occurs in winter, at temperatures so cold that carbon dioxide, rather than water, is likely to play the key role,” the agency said.
Last week, the agency also announced that MRO recovered from an unplanned computer swap that put the spacecraft into safe mode. Incidents of this nature have happened four times before, the agency noted.
Hot off of the popularity of the Cosmos reboot, host Neil deGrasse Tyson is going to host a panel at 7:30 p.m. EDT (11:30 p.m. UTC) tonight about “selling space.” Check it out in the livestream above. Here is the description from the American Museum of Natural History in New York City, which is hosting the event:
From serving NASA’s cargo needs to sending tourists on space vacations to mining asteroids for profit, aerospace engineers could transform space into our backyard. The sold-out 2014 Isaac Asimov Memorial Debate at the American Museum of Natural History will explore the idea of “selling space” with a panel of six entrepreneurs and space historians.
Besides Tyson (who is director of the museum’s Hayden Planetarium), here is who else is participating:
Wanda M. Austin, President and CEO, The Aerospace Corportation
Michael Gold, Director of DC Operations and Business Growth, Bigelow Aerospace
John Logsdon, Professor Emeritus, Space Policy and International Affairs, George Washington University
Elliot Pulham, Chief Executive Officer, Space Foundation
Tom Shelley, President, Space Adventures, Ltd.
Robert Walker, Executive Chairman, Wexler & Walker Public Policy Associates
There are no tickets left for the event, but you can watch it in the livestream above and interact with the hashtag #AsimovDebate.
For more information on Tyson, visit his website. The 13-part Cosmos series is airing every Sunday or Monday in many jurisdictions; check your local listings for more information.
European Space Agency astronaut Thomas Pesquet (upside-down) testing out the "skinsuit" during a parabolic flight to simulate microgravity in March 2014. Credit: CNES/Novespace
If you’ve ever felt insecure about your height, orbit is a great place to be. Astronaut spines lengthen up to 2.75 inches (7 centimeters) while they’re in microgravity. There are big downsides, however. First there’s the backache. Second, you’re four times as likely to get a slipped disc when you return to Earth.
The solution could be as simple as tight clothing. Above you can see French astronaut Thomas Pesquet (already flying high this week after he was publicly named to a flight in 2016) trying out a prototype of the skinsuit. Essentially, it’s so tight that it could prevent you from growing, which in turn would stop the pain and risk of damage.
“The skinsuit is a tailor-made overall with a bi-directional weave specially designed to counteract the lack of gravity by squeezing the body from the shoulders to the feet with a similar force to that felt on Earth. Current prototypes are made of spandex, although new materials are being examined,” the European Space Agency wrote.
A model poses in the “skinsuit”, a tight-fitting garment being tested to counteract back pain in space. Credit: ESA
The first astronaut to test the suit out in space will be Andreas Mogensen, who will launch to the International Space Station next year.
ESA says if it works, the suit would not only be useful for astronauts, but also could be great for people with back pain on Earth — and possibly, even those with conditions such as cerebral palsy.
Prototypes are being developed between ESA’s Space Medicine Office, King’s College London (United Kingdom), University College London (United Kingdom) and the Massachusetts Institute of Technology (United States).
Flowers on a console in NASA Mission Control in 2011 for American Thanksgiving. The bouquets are regular gifts from the Shelton/Murphy families in Texas, who have been sending flowers regularly since shuttle mission STS-26 in 1988. Credit: NASA
Three red roses and a white one. The flower bouquet sitting in NASA Mission Control right now in Houston is one of a series that has appeared with every single mission since 1988 — a small gift from a Texas family whose members are long-standing fans of space exploration.
The first bouquet showed up on landing day for the first flight (STS-26) after the shuttle Challenger explosion. And bouquets have continued for every flight since, a gift that NASA is glad to see when it arrives.
“It means a lot to the team here in Houston,” NASA spokesperson Josh Byerly said in the YouTube video above, an excerpt from a broadcast on NASA TV. “We’re big on tradition here at NASA, and we are very happy that this tradition continues.”
Each red rose symbolizes a member of an expedition crew — in this case, Expedition 39/40‘s Steve Swanson (NASA), Alexander Skvortsov (Roscosmos) and Oleg Artemyev (Roscosmos). The white one is a symbol of all of the astronauts who have lost their lives, such as those in the Apollo 1, Challenger and Columbia disasters.
“When I first walked into the control room I noticed them right away, because it was so different, and I walked over and read the card,” stated Milt Heflin, who was a shuttle flight director at the time. “It was very simple, saying congratulations and wishing everyone the best on the mission. It was signed but it didn’t have any contact information for the senders.”
Helfin did manage to track down the family — Mark, Terry and daughter MacKenzie — and over the years, the Sheltons received cards of thanks and invitations to see launches and Mission Control.
The Shelton family during a visit to NASA Mission Control in Houston in 1990. From left, NASA’s Steve Stitch, Terry Shelton, Mark Shelton and daughter MacKenzie. They have been sending flowers to NASA regularly since shuttle mission STS-26 in 1988. Credit: NASA
“I didn’t actually decide to do it until the day the STS-26 mission was to land, and I didn’t know that I even could get it done in time,” Mark Shelton stated, who added he first became interested in space after a childhood visit to the NASA Johnson Space Center in Houston in the 1960s.
“I called information to find a florist near the space center, and then I asked the florist if they could deliver roses to Mission Control. At first they said they couldn’t do it … but then they said they would try.”
The attempt succeeded, obviously, and with each mission new flowers arrive. The bouquets are now including participation from a “second” generation, Byerly said in the video, saying that they now come from the Sheltons and the Murphys.
European Space Agency astronaut Alex Gerst during training prior to Expedition 40/41 in 2014. Credit: European Space Agency
Imagine that you were in the middle of a module on the International Space Station. Floating in mid-air, far from handholds or any way to propel yourself. Is there any way to get out of that situation?
The short answer is not easily, and the longer answer is it could be an effective way to trap criminals in space, joked veteran cosmonaut Maxim Suraev in a press conference today (March 18) for the upcoming Expedition 40/41 mission, which also includes rookies Alex Gerst and Reid Wiseman.
Speaking in Russian, Suraev explained that during his last 2010 mission, he had crew members set him up in the middle of the station’s Node 3. “It is true that you can twist as much as a contortionist, but you won’t be able to move because you have nothing to bear against,” he said in remarks translated into English.
That said, the ventilation system on station does tend to push objects (and people) towards the vents after a time, he observed. What if you had multiple vents set up, however?
“I thought that if ever we have a permanent human habitation in space, this would be the best way to keep a person confined — like in a prison — in the middle of the room, where he or she could not move anywhere,” Suraev continued. “Being in limbo, as you will. The only thing that is required is a large room, a person and several fans blowing in different directions to keep the person in the middle of the room. That’s scary, trust me!”
NASA astronaut Reid Wiseman does spacewalk training in a partial gravity simulator ahead of his Expedition 40/41 flight in 2014. Credit: NASA
There’s no fear on Suraev’s part that it will happen with his crewmates, however. “My new crew, they’re really good guys and I’m really looking forward to being with my new crew in space, and to spend five and a half months aboard the space station,” he said in an English phone interview after the press conference. (Good news given that Suraev will assume command of Expedition 41.)
The crew (who lifts off in May) will have an action-packed mission. It will include the arrival of the last Automated Transfer Vehicle (ATV) and — if NASA fixes on a spacesuit leak allow — two American maintenance spacewalks. There also are 162 experiments to perform (this according to Gerst) and if there’s time, checking out our home planet.
“Earth observation was not one of the primary goals that [station] was designed for,” he cautioned in a phone interview, but he added that one of its strengths is there are people on board the orbiting laboratory that can fill in the gaps for other missions.
Gerst (who was a volcano researcher before becoming an astronaut) pointed out that if a volcano erupts, a typical Earth satellite would look straight down at it. Astronauts can swing around in the Cupola and get different views quickly, which could allow scientists to measure things such as the volcano plume height.
Another example of flexibility: The Expedition 39 crew right now is (news reports say) helping out with the search for the missing Malaysian Airline Flight 370.
“We’re really good at capturing things quickly and then sending the pictures down to the ground,” Gerst said.
Wiseman, as one of the rookies on mission, says he is interested in comparing the experience to his multi-month Navy missions at sea. It’s all a matter of mindset, he said in a phone interview. He once was assigned to a naval voyage that was expected to be at sea for six months. Then they were instructed it would be 10 months, leading to fistfights and other problems on board, he recalled.
Russian cosmonaut Maxim Surayev during a spacewalk in January 2010 for Expedition 22. Credit: NASA
Astronauts for the forthcoming one-year mission to station, he pointed out, will launch with different expectations than someone expecting about a six-month stay. “If you know you’re up there for one year, you’re going to pace yourself for one year,” he said.
But there still will be sacrifices, as Wiseman has two daughters (five years old and eight years old). He’s asking the older child to do a bit of social media, and the younger one to draw pictures that could be included in the “care packages” astronauts receive from Earth. “It’s going to be tough not to see them on a daily basis. They grow so fast,” he said.
Other things to watch for on this mission include the arrival of the station’s first 3-D printer, setup of an alloy furnace to make new materials in microgravity, and a potential Wiseman-led “come out and wave campaign” that would encourage families to go outside and tweet about the space station as they watch it.
You can follow Expedition 40/41’s continuing adventures at Universe Today as well as on social media: @astro_reid for Wiseman, and for Gerst, @astro_alex or his Facebook page.
The crew members of Expedition 40/41 pose in front of a Soyuz spacecraft simulator in Star City, Russia. From left, Alex Gerst (European Space Agency), Max Suraev (Roscosmos) and Reid Wiseman (NASA). Credit: NASA
A portion of a collage of galaxies included in the Herschel Reference Survey, in false color to show different dust temperatures. (Blue is colder, and red is warmer). Credit: ESA/Herschel/HRS-SAG2 and HeViCS Key Programmes/L. Cortese (Swinburne University)
While dust is easy to ignore in small quantities (says the writer looking at her desk), across vast reaches of space this substance plays an important role. Stick enough grains together, the theory goes, and you’ll start to form rocks and eventually planets. On a galaxy-size scale, dust may even effect how the galaxy evolves.
A new survey of 323 galaxies reveals that dust is not only affected by the kinds of stars in the vicinity, but also what the galaxy is made of.
“These dust grains are believed to be fundamental ingredients for the formation of stars and planets, but until now very little was known about their abundance and physical properties in galaxies other than our own Milky Way,” stated lead author Luca Cortese, who is from the Swinburne University of Technology in Melbourne, Australia.
“The properties of grains vary from one galaxy to another – more than we originally expected,” he added. “As dust is heated by starlight, we knew that the frequencies at which grains emit should be related to a galaxy’s star formation activity. However, our results show that galaxies’ chemical history plays an equally important role.”
Galaxies in the Herschel Reference Survey in infrared/submillimeter wavelengths (with the Herschel space telescope, at left) and the Sloan Digital Sky Survey (right). Herschel’s false-color image shows galaxies with cold dust (blue) and warm dust (red). Sloan highlights young stars (blue) and old stars (red). “Together, the observations plot young, dust-rich spiral/irregular galaxies in the top left, with giant dust-poor elliptical galaxies in the bottom right,” the European Space Agency stated. Credit: ESA/Herschel/HRS-SAG2 and HeViCS Key Programmes/Sloan Digital Sky Survey/ L. Cortese (Swinburne University)
Data was captured with two cameras on the just-retired Herschel space telescope: Spectral and Photometric Imaging Receiver (SPIRE) and Photodetecting Array Camera and Spectrometer (PACS). These instruments examined different frequencies of dust emission, which shows what the grains are made of. You can see a few of those galaxies in the image above.
“The dust-rich galaxies are typically spiral or irregular, whereas the dust-poor ones are usually elliptical,” the European Space Agency stated. “Dust is gently heated across a range of temperatures by the combined light of all of the stars in each galaxy, with the warmest dust being concentrated in regions where stars are being born.”
Astronomers initially expected that a galaxy with speedy star formation would display more massive and warmer stars in it, corresponding to warmer dust in the galaxy emitting light in short wavelengths.
“However, the data show greater variations than expected from one galaxy to another based on their star formation rates alone, implying that other properties, such as its chemical enrichment, also play an important role,” ESA said.
