Tag: spaceflight

Ants in space!

9:08 am

By studying the behavior of eight colonies of ants sent to ISS, scientists have discovered that ants can adapt to weightlessness, though they do not do quite as well as their gravity-bound counterparts.

To start the experiment, a barrier was removed that allowed them to explore a new area. After a few minutes, a second barrier was lifted, expanding the available territory even further. “The idea is to ask the ants to search a small space – and then provide more space and see what will happen when the same number of ants have to use a larger space,” Prof Gordon explained. Equivalent experiments were also run back on Earth, for comparison.

Down on ground level, adding extra space and dropping the “density” of ants caused them to adjust their paths, covering more ground and spreading out much more. In this way, nearly every corner of the container was visited by more than one ant within five minutes. The ants in space still did their best to search, moving out into the expanded area as expected – but they were nowhere near as effective as their counterparts on the ground, which had the luxury of normal gravity.

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X-37B to fly again!

8:18 pm

The May 6 Atlas 5 launch will carry one of the Air Force’s two X-37B mini-shuttles on a new mission in space.

The Air Force won’t yet confirm which of the Boeing-built spaceplanes will be making the voyage. The first craft returned in October from a 675-day mission in space following a 224 day trek in 2010. OTV No. 2 spent 469 days in space in 2011-2012 on its only mission so far. “The program selects the Orbital Test Vehicle for each activity based upon the experiment objectives,” said Capt. Chris Hoyler, an Air Force spokesperson. “Each OTV mission builds upon previous on-orbit demonstrations and expands the test envelope of the vehicle. The test mission furthers the development of the concept of operations for reusable space vehicles.”

There are indications that the Air Force wants to attempt landing the shuttle at Kennedy this time.

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Opportunity has another brief memory loss

8:14 pm

Less than a week after engineers had rebooted the rover’s memory and thus thought they had solved its flash memory problems, Opportunity has had another brief bout of amnesia.

They didn’t loss any data, and the event was much smaller than the problems that had shut down use of the memory banks in December. Nonetheless, they do not know what caused it.

Accumulative problems like this are what will likely end Opportunity’s life. It appears we might be seeing the arrival of old age in the rover.

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NASA denies new space station partnership with Russia

9:12 am

NASA officials today denied they were negotiating a partnership with Russia to build a space station replacement for ISS, as suggested yesterday by the head of Russia’s space program.

I am beginning to suspect that the misunderstanding here comes from NASA head Charles Bolden, who is in Russia right now. Knowing Bolden, who is a nice guy who likes to make others happy, he probably said some nice feel-good, kumbaya things to the Russians during conversations with them, things like “We want to keep working together,” and “We will support your plans for your future space station whole-heartedly.” None of this was meant as a commitment, but the Russians might have taken these statements more seriously than Bolden realized.

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A photo tour of Vandenberg Air Force Base

3:15 pm

Yesterday, as part of my visit to Vandenberg Air Force Base to give a space history lecture to the local section of the American Institute of Aeronautics and Astronautics, I was given a short tour of these west coast launch facilities. While Kennedy is used for launches that circle the equator, Vandenberg, with its southern-facing coast, launches rockets that head south over the ocean for a polar orbit.

We only had time to go inside one launchpad, where unfortunately I was not permitted to take pictures. However, the images I did get will give you a reasonable sense of the layout for this spaceport, which is increasingly becoming a spaceport for private launch companies like ULA and SpaceX. Though the bulk of business for both companies here might be military and government payloads, the future is still going to include a lot of private payloads. The images also help to highlight the differences between these two companies, as well as some past history, as one of these launchpads was once intended for the space shuttle, though never used for that purpose.
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Air Force subsidies to ULA to end

9:32 am

The competition heats up: Because it has concluded that they make it impossible to have a fair competition for contracts, the Air Force has decided to phase out the subsidies it has been paying to the United Launch Alliance (ULA).

The specific amounts of these subsidies have been effectively buried by the Air Force in many different contracts, so we the taxpayers really don’t know how much the are.

Nonetheless, this decision, combined with the military report released yesterday that criticized the Air Force’s over-bearing and restrictive certification process with SpaceX indicates that the political pressure is now pushing them hard to open up bidding to multiple companies, which in turn will help lower cost and save the taxpayer money.

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How scientists are using the Kelly twins during Scott Kelly’s year-long mission to ISS to learn how weightlessness effects the human body

9:21 am

Link here. Scott Kelly launches today to the station to begin the flight.

The article’s headline and initial focus on how the Kellys’ privacy rights might interfere with the research seems inappropriate. It is as if the author and Nature wanted to spin the story to force the Kellys to reveal private medical data they would prefer to keep private.

The real story the article tells is that an incredible wealth of knowledge about microgravity will be gained by this flight, because the Kellys are both participating. And depending on what is learned when their entire genomes are sequenced, we might also be able to study that fully as well.

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Air Force demanded too much in its SpaceX certification process

4:50 pm

In the heat of competition: A military review of the Air Force’s certification process of SpaceX has found that the Air Force has demanded far more changes from the company than were justified or proper.

The report, prepared by former Air Force Chief of Staff General Larry Welch, said the Air Force treated the process like a detailed design review, dictating changes in SpaceX’s Falcon 9 rocket and even the company’s organizational structure. That approach resulted in over 400 issues that needed to be resolved, which was “counterproductive” to a national policy aimed at encouraging competition in the sector.


In fact, the process was intended to show that SpaceX met overall requirements to launch military satellites, not carry out the more detailed review required for each launch on a case-by-case basis, he said.

The review also concluded that SpaceX was too resistent to any proposed changes.

SpaceX might have been too resistent, but this report confirms my suspiciion that the Air Force purposely created hoops for SpaceX to jump through because the Air Force really didn’t want to have to deal with SpaceX and wanted to make it too difficult for them to be approved.

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Stay tuned for photo tour of Vandenberg

4:23 pm

I am presently at Santa Barbara Airport waiting for my flight home to Tucson after spending the day at Vandenberg Air Force Base. After Steve and Jessica Tullino of the Vandenberg Section of the AIAA gave me a tour of the base, including a close look at one launchpad, I then was their speaker at their section’s luncheon meeting.

Anyway, I took a bunch of pictures and plan to post these sometime tonight or tomorrow. Stay tuned.

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NASA has decided to grab an asteroid rock rather than bag an asteroid

10:43 pm

Rather than try to bag an entire small asteroid with an unmanned probe and bring that back to Earth, NASA has decided to send an unmanned probe into orbit around an asteroid and use it to grab one of the asteroid’s boulders.

The $1.25 billion mission, which is planned to launch in December 2020, would send a robotic spacecraft for a rendezvous with an asteroid in 2022. After touching down on the asteroid’s surface, the spacecraft would snatch a boulder several meters across. The spacecraft would then orbit the asteroid for up to 400 days, testing out an idea for defending Earth from a catastrophic asteroid impact: using the spacecraft’s own gravitational field to subtly alter the asteroid’s orbit. Next, the spacecraft would bring the snatched rock back to Earth’s vicinity in 2025. Finally, as part of preparations for a possible mission to Mars, astronauts would visit and examine the rock for some 25 days, using the planned Orion spacecraft to make the trip.

From both a science perspective as well as a manned space perspective, the unmanned part of this plan is a very good idea. Whether it will get funded depends upon Congress, since its roots go back to President Obama’s April 2010 commitment to send astronauts to an asteroid by 2025. Such a commitment was never really realistic, so it has devolved to capturing a rock and sending astronauts to visit it, thus meeting Obama’s commitment in a Potemkin Village sort of way.

Much better to bring the rock back to Earth orbit where it can be captured and brought to ISS by any number of vehicles and studied there. Whether Congress will fund this in the manner proposed in order to help Obama meet his commitment however remains very doubtful.

Posted from Santa Barbara, California.

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Curiosity finds nitrates on Martian surface

12:01 pm

Using data from Curiosity scientists have for the first time identified nitrates, also called fixed nitrogen, on the Martian surface.

There is no evidence to suggest that the fixed nitrogen molecules found by the team were created by life. The surface of Mars is inhospitable for known forms of life. Instead, the team thinks the nitrates are ancient, and likely came from non-biological processes like meteorite impacts and lightning in Mars’ distant past.


Features resembling dry riverbeds and the discovery of minerals that form only in the presence of liquid water suggest that Mars was more hospitable in the remote past. The Curiosity team has found evidence that other ingredients needed for life, such as liquid water and organic matter, were present on Mars at the Curiosity site in Gale Crater billions of years ago.

The data also suggests that these nitrates are widespread on the Martian surface.

The most important aspect of this discovery to me is not so much that it suggests the faint possibility of past life on Mars but that it makes Mars a more hospitable place for life in the future. Nitrates are essentially fertilizer, and for Mars to have this material in the soil already means it will be easier to figure out how to grow crops there.

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Sierra Nevada makes deal with Houston airport authority for Dream Chaser landings

10:19 am

Sierra Nevada has made an agreement with Houston’s airport authority to use Ellington Airport there to land its Dream Chaser spacecraft.

This announcement is part of the public relations push going on right now as NASA prepares to award its next round of cargo freighter contracts to two private companies. Sierra Nevada has bid to use an unmanned version of Dream Chaser to launch that cargo.

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Opportunity’s flash memory reformatted successfully

10:15 am

A three month old flash memory problem on the Mars rover Opportunity has finally been fixed by reformatting the rover’s memory banks.

Since the problem came up in December they have been operating the rover without any flash memory, essentially running it on the equivalent of its ram memory. This fix allows them to once again store data on the rover and gives them more flexibility of operation.

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A photo tour of Vostochny

9:56 am

The Siberian Times has posted a very interesting photo tour of Russia’s new spaceport, Vostochny, presently under construction.

The article is very much a propaganda piece pushed by the Russian government (some photos were actually taken by Russian First Deputy Prime Minister Dmitry Rogozin himself), but it still gives you a sense of the scale and size of the project.

It is quite instructive to compare how the Russians do things, with a giant public works project costing $5 billion and taking more than a decade to build, with how the Americans do things, with a small privately-built space port being constructed by SpaceX in Brownsville for mere millions and in only a few years.

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India extends Mangalyaan’s mission by six months

9:20 am

Western slopes of Arsia Mons

Having successfully completed its nominal six month mission and continuing to operate perfectly, ISRO has extended the mission of India’s Mangalyaan Mars orbiter for another six months.

Take a gander at the images the orbiter has been sending down. Quite impressive. The cropped image on the right shows the western slopes of the giant volcano Arsia Mons, with white water vapor hovering above those slopes. (Click on the image for the full resolution version.) The water vapor is significant because scientists believe that this region once had many glaciers, and that much of that water is still present and trapped below the surface as ice, possibly in many of the caves that are there. The vapor’s presence, a routine occurance here, strengthens this theory.

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Test flight of rail-guided launcher delayed to October

9:14 am

The competition heats up: The first test flight of a rail-guided military small satellite launcher has been delayed until October 2015.

“Launch delays of the new launch system were driven primarily by technical development challenges on the first stage motor including design and delivery of the rocket motor case and the integrated rocket motor,” Anttonen said in a response to written questions from Spaceflight Now. “This motor is now complete along with the rest of the launch vehicle, and the launch is on hold pending an opening in the range schedule,” Anttonen said.

The launch system is designed to provide launch capability for small satellites like cubesats, with a launch cost of $12 to $15 million. If successful, it will be a direct competitor to Virgin Galactic’s LauncherOne, except that it appears it might be operational first.

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Russian tourism flights to resume in 2018

9:06 am

The competition heats up: Faced with the loss of income from NASA in 2017, when private commercial ferries take over the job of bringing Americans to ISS, Russian officials today revealed that they plan to resume launching tourists to the station in 2018.

The problem the Russians will have then is that they will have competition from the American companies, who will likely be able to compete in price with them, and will be easier to work with.

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Further SLS delays loom

9:32 pm

A report by NASA’s inspector general finds that the planned first launch of the SLS rocket in November 2018 is threatened with delay because the ground facilities at Kennedy might not be ready.

In a report released Wednesday, NASA’s Office of Inspector General warned that Ground Systems Development and Operations, or GSDO, may be hard-pressed to have Kennedy Space Center’s launch facilities ready on time. Ground systems are a critical piece of the SLS-Orion infrastructure. All three elements are tightly integrated, with ground systems requiring significant input from the rocket and capsule designs. “GSDO cannot finalize and complete its requirements without substantial input for the other two programs,” said Jim Morrison, the assistant inspector general for audits. “And NASA is still finalizing the requirements for those programs.”

Gee, I guess SLS isn’t getting enough money, as its budget is only about $3 billion per year (about six times what the commercial space program gets per year, a program that has already created two freighter systems for ISS and is now creating two manned ferry systems for ISS). Why don’t we give them more, so that even more won’t be done with the money we spend?

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Want to help name Pluto’s features? You can!

11:10 am

The New Horizons science team is asking the public to help name the planet’s features it expects to see when the spacecraft flies past Pluto on July 14.

I should mention that the project scientist for New Horizons is Alan Stern, who also happened to be a major player in the private space effort called Uwingu, which previously offered the public the opportunity to name features on Mars, without IAU approval.

In the case of New Horizons, Stern is kind of forced to work with the IAU, since the project is funded by NASA and NASA would never challenge a fellow bureaucracy like IAU.

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Rosetta’s first attempt to contact Philae ends with no contact

8:59 am

After eight days of sending signals, listening for Philae, and getting no response, Rosetta has ceased its effort.

“It was a very early attempt; we will repeat this process until we receive a response from Philae,” says DLR Project Manager Stephan Ulamec. “We have to be patient.” On 20 March 2015 at 05:00 CET, the communication unit on the Rosetta orbiter was switched off. Now, the DLR team is calculating when the next favourable alignment between the orbiter and the lander will occur, and will then listen again for a signal from Philae. The next chance to receive a signal from the lander is expected to occur during the first half of April.

They always knew that it was unlikely for the lander to come alive this soon, but they tried anyway. The odds improve, however, in the coming months.

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How NASA will use Bigelow’s privately built ISS module

8:55 am

Not much it seems. The key paragraph is this:

Once installed, BEAM will be largely sealed off from the rest of ISS, with astronauts entering it every four to six months to retrieve data from sensors inside it. Crusan suggested NASA will consider making greater use of the module over time as the agency becomes more comfortable with its performance. That would require additional work inside the module, he said, since it has no active life support system beyond some fans.

This story illustrates NASA’s sometimes incredibly over-cautious approach to new technology. I grant that space is difficult and that it is always wise to be careful and to test thoroughly any new technology, but NASA sometimes carries this too far. For example, it took NASA more than two decades of testing before it finally approved the use of ion engines on a planetary mission (Dawn). Similarly, inflatable modules were abandoned by NASA initially, and wouldn’t even exist if a private company, Bigelow, hadn’t grabbed the technology and flown it successfully.

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Giant lava tubes possible on the Moon

1:58 pm

New analysis of the lunar geology combined with gravity data from GRAIL now suggests that the Moon could harbor lava tubes several miles wide.

David Blair, a graduate student in Purdue’s Department of Earth, Atmospheric and Planetary Sciences, led the study that examined whether empty lava tubes more than 1 kilometer wide could remain structurally stable on the moon. “We found that if lunar lava tubes existed with a strong arched shape like those on Earth, they would be stable at sizes up to 5,000 meters, or several miles wide, on the moon,” Blair said. “This wouldn’t be possible on Earth, but gravity is much lower on the moon and lunar rock doesn’t have to withstand the same weathering and erosion. In theory, huge lava tubes – big enough to easily house a city – could be structurally sound on the moon.”

You can read their paper here. If this is so, then the possibility of huge colonies on the Moon increases significantly, as it will be much easier to build these colonies inside these giant lava tubes.

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Mars One finalist kicked out for publicly criticizing company.

9:31 am

The Mars One finalist who publicly criticized the company’s proposed one-way Mars mission has been kicked out.

The company claims he breached their confidentiality rules. In addition, other finalists have contested his criticisms. Their points seem reasonable, but the bottom line remains that the project is unrealistic and will not fly. They lack the funding and the technology to do it, and won’t have it for decades.

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