Tag: engineering

In a vague announcement with unclear ramifications, a NASA memo today suspended “all contact with Russian government officials,” though it exempted all activities in connection with ISS.

12:38 pm

In a vague announcement with unclear ramifications, a NASA memo today suspended “all contact with Russian government officials,” though it exempted all activities in connection with ISS.

Given Russia’s ongoing violation of Ukraine¹s sovereignty and territorial integrity, until further notice, the U.S. Government has determined that all NASA contacts with Russian Government representatives are suspended, unless the activity has been specifically excepted. This suspension includes NASA travel to Russia and visits by Russian Government representatives to NASA facilities, bilateral meetings, email, and teleconferences or videoconferences. At the present time, only operational International Space Station activities have been excepted. In addition, multilateral meetings held outside of Russia that may include Russian participation are not precluded under the present guidance.

It appears they are suspending all NASA activities with Russia except ISS, which means that the most important and the bulk of the cooperative work will continue. However, it does mean that the Obama administration has decided to politicize NASA’s operations with Russia in a way that has not been done since the fall of the Soviet Union.

I will be doing a segment on John Batchelor tonight on this developing story.

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Scientists from the joint European/Russian ExoMars rover mission have narrowed their candidate landing sites to four.

9:43 am

Scientists from the joint European/Russian ExoMars rover mission have narrowed their candidate landing sites to four.

Last week, 60 scientists met at ESA’s European Space Astronomy Centre near Madrid to discuss eight potential sites. On 27 March, they cast an informal vote, and four sites emerged as favourites: Mawrth Vallis, Oxia Planum, Hypanis Vallis and Oxia Palus. An expert working group tasked with recommending a final landing site will now consider the proposals, before announcing a formal shortlist of three or four sites in June. Following detailed studies of the shortlisted sites, the panel will make a single recommendation to ESA and Roscosmos in late 2016.

This is maybe the most risky mission to Mars in decades, as the landing design is coming from the Russians, who have not had a successful interplanetary mission since the era of the Soviet Union, and even then had a 100% failure rate for their missions to Mars. (On a more optimistic note, the European Mars Express mission used a Russian rocket to take off, making it the first Mars mission with Russians participation that actually succeeded.)

One of the factors that has made this mission more risky is the fact that the U.S. was once a participant and backed out very late in the game. The Russians are our replacement, and have had to scramble to catch up.

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The German-built comet lander Philae has been successfully reactivated on Rosetta.

9:24 am

The German-built comet lander Philae has been successfully reactivated on Rosetta.

Philae will be ejected from the Rosetta mothership in November to latch itself onto the comet’s icy surface with harpoons and screws. The lander has its own suite of science instrumentation to take the first-ever photos and measurements from a comet’s surface. Engineers plan a four-week commissioning phase for Philae to check on its health and activate the lander’s 10 instruments.

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China’s new spaceport and the giant rocket it is being built for.

9:15 am

The competition heats up: China’s new spaceport and the giant rocket it is being built for.

The combination of the planned rocket, called the Long March 5 — and its derivatives — matched with the Wenchang Launch Center, China’s new sprawling spaceport, underscores the country’s shifting space gears. It enables China’s space station ambitions, while also boosting the nation’s plans for interplanetary exploration, as well as accomplishing human treks to the moon.

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NASA is looking to extend its commercial cargo contracts with SpaceX and Orbital Sciences until 2017.

8:44 am

NASA has extended its commercial cargo contracts with SpaceX and Orbital Sciences until 2017.

Since the notice says that “the modifications would be made ‘at no cost’ to the agency, and that they would be “executed one year at a time,” the extension is probably just designed to give the two companies sufficient time to launch all their cargo missions in the present contracts.

Nonetheless, the posting also said that other companies could compete for NASA’s business during this extension, which leaves the door open for more competition.

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Orbital Sciences has begun construction of the 81satellites that will make up Iridium’s second generation communications satellite constellation.

9:04 am

The competition heats up: Orbital Sciences has begun construction of the 81satellites that will make up Iridium’s second generation communications satellite constellation.

Not only is this big business for satellite construction — 81 satellites is a big order — someone will have to launch those satellites. Even if they are launched in groups of five, which was how it was done for the first generation, it will still take more than 16 launches to get them all in orbit. That will be a lot of business for some lucky rocket company.

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The Air Force’s X-37B mini-shuttle presently in orbit has now set a new record for the spacecraft’s longest flight.

8:59 am

The Air Force’s X-37B mini-shuttle presently in orbit has now set a new record for the spacecraft’s longest flight.

The X-37B space plane currently in orbit in flying the Orbital Test Vehicle 3 (OTV-3) mission, the third long-duration flight of the unmanned Air Force spaceflight program. The miniature space shuttle launched on Dec. 11, 2012 and is surpassed the record for longest X-37B spaceflight on Wednesday (March 26). Until now, the record for the longest X-37B mission is 469 days, set by the program’s OTV-2 mission that was launched in 2011.

The OTV-3 mission in orbit today now uses the first of the Air Force’s two X-37B space plane vehicles. The same spacecraft was used to fly the first-ever X-37B mission (the 225-day OTV-1 flight in 2010), while a second vehicle flew the longer OTV-2 mission a year later.

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