Ah, Laddy...Cheese Grommit!
NASA boffins are chuffed as ninepence this week to announce that they have discovered unmistakable signs of a crashed spacecraft far away from the Apollo landing sites on the far side of the Moon. Now you see my ejecta, now you don't The boffins believe that the wrecked craft was the Lunar Atmosphere and Dust Environment …
The illuminated side of the Moon (not to be confused with the near side) is bombarded by the solar wind with 5-80 protons/cm³ at ~200000K. The velocity of sound in hydrogen plasma (not H2 gas) at 200000K is approx. 57 km/s.
So 3800 miles/hour is 0.033 in lunar Mach numbers.
Would have been far better if they had not crashed it at all. In this day it is not acceptable to just fill everything up with junk because we do not want to think about clearing up. Look at the problems off space junk.
It is the same as chucking barrels of nuclear waste into the sea. Out of sight, out of mind, job done & a hearty pat on the back.
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