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

nytimes.com

61–70 of 219 posts

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

#61
post #56
post #36

Earlier quoted context omitted.

I doubt SpaceIL will be able to use anything they learned. IIUC they are out of money and can't move forward.

The prime minister of Isreal announced they'll try again in two years. So that judgment may be a little premature. Regardless knowledge transfer isn't limited to either of those.

I understood incorrectly then. Nice to hear.

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

#63
post #13

It seems that they just got a new word in the dictionary: https://mobile.twitter.com/teamspaceil/status/11163129311033... I find it a bit irritating to be that cocky when it comes to space technology. Better luck next time!

Count your blessings.

They are the 4th country to reach the Moon (albeit at 1km/s).

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

#64
post #5
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 :/

Gotta be a terrible "oh man we're back up---- nope" moment :(

It was. Some people in the audience were clapping when the announcement came that the engine was back on, but quite a few other people were shaking their heads and shushing them.

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

#65
post #27
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 :/

Based on the telemetry from the broadcast it seems that there was a failure at 13km that resulted in both telemetry and engine loss. When telemetry connection came back vertical speed has already doubled and it kept going up until spacecraft hit the ground. Engine was probably never restarted. Edit1: Telemetry came back at 10k. For the next minute and a half there was uncertainty about the main engine even though tel…

>900m/s horizontal.

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

#66
post #47
post #13

It seems that they just got a new word in the dictionary: https://mobile.twitter.com/teamspaceil/status/11163129311033... I find it a bit irritating to be that cocky when it comes to space technology. Better luck next time!

Contrast with Elon Musk saying the next launch of the Falcon Heavy (today) has a 5-10% chance of failure. [1] This is after it has already successfully launched once. [1] https://twitter.com/elonmusk/status/1115998728878321672

Or Musk persistently pointing out how he expected the first Falcon Heavy launch to explode as the most likely outcome. The early intense trauma of SpaceX failures I think taught him valuable lessons in humility when it comes to space.

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

#68
post #28

Earlier quoted context omitted.

Agree to disagree here. The whole "we're all one people thing" is a great idea and all (I'm a huge fan, would love for the U.N. to be something other than the personification of national relations and instead be a real governing body) but that's not how things work. This is Israel's project. They had assistance from other organizations/countries, but they're not doing this to better North Korea in any real way and yo…

Disagree to agree here. It should really be how things can work. We have the opportunity and possibly the unity to get together on a vision for mankind for the first time in history. Obviously there are challenges, but if all people got to vote in their respective democraties for a global push to space - I would be surprised to not see it approved.

> but if all people got to vote in their respective democraties for a global push to space

Isn't that anathema to the current isolationist, nationalist bent a lot of the worlds biggest and baddest powers people seem to be adopting?

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

#69

It's hard to conjure much sympathy for a nationalistic boondoggle with little scientific value that's trying to participate in a space race that ended decades ago. Now, instead of a flag, they have a commemorative crater in the desert. Talk about symbolism...

Space is not a race, its a jungle gym. Get on it.

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

#70
post #51
post #21

Earlier quoted context omitted.

With a population of < 3% of the USA, < 1% of China.

Not to mention 0.1% of the budget!

0.1% the budget because they didn't have to spend hundreds of billions of dollars to research and build the last 60 years of space technology - rolling progress forward one painful, costly mistake at a time - to do it. Hardly seems reasonable to use such a comparison or make such a point given the actual context.
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