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Space - the final frontier (Misc.) II

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Bamaro

Bamaro

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Oct 19, 2001
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Don’t panic, but an asteroid has a 1.9% chance of hitting Earth in 2032

The detection on December 27 came from one of a network of telescopes managed by the Asteroid Terrestrial-impact Last Alert System (ATLAS), a NASA-funded project to provide warning of asteroids on a collision course with Earth.

Within a few days, scientists gathered enough information on the asteroid—officially designated 2024 YR4—to determine that its orbit will bring it quite close to Earth in 2028, and then again in 2032. Astronomers ruled out any chance of an impact with Earth in 2028, but there's a small chance the asteroid might hit our planet on December 22, 2032.
How small? The probability has fluctuated in recent days, but as of Thursday, NASA's Center for Near Earth Object Studies estimated a 1.9 percent chance of an impact with Earth in 2032. The European Space Agency (ESA) put the probability at 1.8 percent. So as of now, NASA believes there's a 1-in-53 chance of 2024 YR4 striking Earth. That's about twice as likely as the lifetime risk of dying in a motor vehicle crash, according to the National Safety Council.

"It is important to remember that an asteroid’s impact probability often rises at first before quickly dropping to zero after additional observations," ESA said in a press release. The agency released a short explainer video, embedded below, showing how an asteroid's cone of uncertainty shrinks as scientists get a better idea of its trajectory.
Click to expand...
 
Tidewater

Tidewater

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This one is interesting.
As crazy as the landing sequence was for the Perseverance rover was (drogue chute, retro rockets, lowering cables, touchdown, all of which was automated), the Dragonfly rover will hover to the surface by rotors.
 
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Bazza

Bazza

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I saw the SpaceX launch tonight. Some clouds but was able to see some of the rocket. Then watched the booster landing on TV. First ever to land in International waters (Bahamas).

 
crimsonaudio

crimsonaudio

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That feeling you get when you look out the window and realize you’re almost home! T-4 days until we land in the Moon. Blue Ghost will reach her final destination no earlier than 2:34 am CST on March 2. We’ll start the joint livestream with
@NASA at 1:20 am CST, approximately 75 minutes before we touch down on the surface.

https://twitter.com/i/web/status/1894833374247698921
 
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