Live data from Hacker News

Israel’s Beresheet Spacecraft Moon Landing Attempt Appears to End in Crash

nytimes.com

11–20 of 219 posts

Re: Israel’s Beresheet Spacecraft Moon Landing Attempt Appears to End in Crash

#14
post #10
post #7

Earlier quoted context omitted.

When is it not a terrible time to have an engine failure?

When you're floating along on a stable orbit not about to impact the surface. Or with more time to recover from the outage before landing. If it happens within the last minute (wild estimation) then you have little time to recover the lost velocity.

[deleted]

Re: Israel’s Beresheet Spacecraft Moon Landing Attempt Appears to End in Crash

#15
post #7
post #2

> On the way down, the main engine cut out. The engine was successfully restarted, but then communications were cut off, and no more information was sent back. Definitely a terrible time to have an engine failure :/

When is it not a terrible time to have an engine failure?

When you have redundant engines??

I was on a plane that had one engine fail. It was fine.

Re: Israel’s Beresheet Spacecraft Moon Landing Attempt Appears to End in Crash

#17
I was just watching it live, cheering for SpaceIL, it's a pity that the landing was not successful.

I was part of the engineering team of the Japanese team Hakuto of the Google Lunar XPRIZE. I always wondered how it would feel to be in the control room at this time, but our launch deal fell through. I can understand what the SpaceIL engineers are going through right now.

Congratulations to all the SpaceIL team for reaching this far, your work has been impressive. Keep trying and you will make it!

Re: Israel’s Beresheet Spacecraft Moon Landing Attempt Appears to End in Crash

#18
post #10
post #7

Earlier quoted context omitted.

When is it not a terrible time to have an engine failure?

When you're floating along on a stable orbit not about to impact the surface. Or with more time to recover from the outage before landing. If it happens within the last minute (wild estimation) then you have little time to recover the lost velocity.

When you are floating along on a stable orbit the engines are off, so it's quite hard to have a failure in this context.

Re: Israel’s Beresheet Spacecraft Moon Landing Attempt Appears to End in Crash

#20
post #12

That's got to be tough: successfully going ~300000km from Earth and then see it fail in the last couple hundred meters. With nothing you can do.

Landings and take offs are always the hardest part of any aerospace event. You're much more likely to see system or mechanical failures when you first start everything up or try to stop moving on an uneven surface.
Post reply on HN