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NASA will air the final test Wednesday, Sept. 12, of the parachute system for its Orion spacecraft, which will carry astronauts to the Moon and beyond.
Live coverage of the test from the U.S. Army’s Proving Ground in Yuma, Arizona will begin at 10:15 a.m. EDT on NASA Television, the agency’s website, and the Orion Facebook page.
Read 7 tweets
Remember when I got to go to @NASA to watch a dev run* in the NBL**? The crew on the @Space_Station are doing that spacewalk now. And you can watch it. nasa.gov/nasalive

*dev run = developmental run = rehearsal
**NBL = Neutral Buoyancy Lab = giant swimming pool
If you're an SF writer watching please note that they attach safety tethers AT ALL TIMES. When you hear "Gate closed, slider locked, black-on-black" that's them moving their safety tether. Those are the 3 steps to confirm that it's locked.

They are religious about tethers.
The SF scenario of someone getting knocked off a station by an impact would take a really weird set of circumstances to happen, because they are constantly tethered or otherwise attached.
Read 65 tweets
THREAD: Need a break from #BlackFriday, digging @NASA’s #BlackHoleFriday? Perfect, enjoy our Black Hole 101! ☄️
First the basics. A black hole is a region in space where the pulling force of gravity is so strong that light is not able to escape. Because of this, black holes are invisible. Only telescopes with special instruments can help find them.
There are three main types of black holes. The black hole's mass and size determine what kind it is.
Read 13 tweets

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