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Simeon Schmauß

Another one bites the (Moon)dust!

This is Intuitive Machines' lander that once again toppled over after trying to land on Mons Mouton near the lunar south pole.

The picture had lots of detail hidden in the shadows which I brought out in processing.

Comparing the new image with an earlier one, shows significant bending of even the top landing legs, telling me that all legs have touched the surface at one point.

According to the landing stream, the main engine continued to fire for several minutes after touchdown.

Another observation (that I can't take credit for):
The team seemed to have deployed the -1 drill in a last ditch effort to get some science results.
With the lander on it's side, it's highly doubtful the drill has contact to the ground.
nasa.gov/mission/polar-resourc

Since the capture time of the image wasn't published, I tried matching the Earth terminator and cloud patterns.
This area above the pacific ocean seems like a good match.
The approximate capture is Mar 7, 2:00 UTC.

Note that we are seeing the Earth "upside down" here and the North pole is slightly tilted towards us.
Alternative view via @zoom_earth: zoom.earth/maps/satellite/#vie

@stim3on

Not sure if it's my setup, but getting an error when it opens 360..

@falken @stim3on

Thanks, I'll work on my setup.... :)

@stim3on @falken

Browser settings, found a temporary fix :)

@stim3on
Help! I've fallen and I can't get up!

Space is really hard.

@stim3on With moon landers like cars wider is better.

@stim3on
@AkaSci

Posting this again. AkaSci explained the issue very clearly when IM-1 tipped over.

"When a lander is tipping, inertial forces push it over, while gravity pulls its feet back down flat. On the Moon, gravity is reduced by a factor of 6, but inertial forces are not. *Everything is 6 times tippier on the Moon.*

Also, having a low center of gravity and a large base helps gravity win over inertial forces."

fosstodon.org/@AkaSci/11198717

Time to rethink top heavy tippy lunar landers.

@mastodonmigration @stim3on @AkaSci In addition to a low center-of-gravity/base ratio, the landing-gear needs *shock absorption*, otherwise the lander will bounce around until it tips on its side.

Why reinvent the wheel? There's already a good 🇨🇦 design that's been successfully tested with all Apollo lunar landings.
🔗spaceq.ca/the-canadian-story-o
The website includes documentation.

SpaceQ Media Inc. · The Canadian Story of the Apollo Lunar Module Landing LegsBy Elizabeth Howell

@stim3on Well, who would have thought. I feel sorry for them, but yeah. Top-heavy lander on a low-grav body is problematic.

@stim3on

Well, that's embarrassing...