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A comment on Mars Helicopter successfully completed its second flight. Parent comment

Re:Mars Helicopter successfully completed its second flight by SamBorick on Thursday April 22, 2021 @01:12PM (#26905202)
A large constraint on Spirit and Opportunity was keeping the panels clear, that's why they lasted so long.

From what I remember, during martian winter they had to take the grade and the prevailing wind direction into account to keep the dust and fines off.

Currently the InSight lander is going into hibernation because the solar panels haven't really gotten cleaned in 3 years: https://www.cnet.com/news/nasa-mars-insight-lander-limits-op...

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Re:Mars Helicopter successfully completed its second flight by LunarRover on Thursday April 22, 2021 @02:53PM (#26906625)
It's already been three years? Feels like a few months ago. Wow.

Still can't believe we've got proof of Marsquakes - that alone turned the consensus on planetary geology upside down.

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