Questions tagged [mars-exploration-rover]

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12
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1answer
1k views

Opportunity's last tau was 10.8; what does that mean and how is tau defined and measured?

@ahiijny added a direct link to the Sol 5110-5114 MER B Downlink Report. These are the final days that signals were received from Opportunity. The message "Tau Value is NOT a Typographical Error" ...
44
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1answer
5k views

Why A=2 and B=1 in the call signs for Spirit and Opportunity?

The Martian rover Spirit held the call signs MER-A and MER-2. Opportunity was called MER-B and MER-1. The assignment A=2 seems backwards; logic would suggest A=1. Why is this so? Based on comments ...
5
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1answer
113 views

Acoustics in Space

Acoustics is an important aspect of not just our architecture but how we and other deep ocean creature interact with each other and the surface. It is known to be used in submarines and other research ...
3
votes
1answer
123 views

How many spacecraft bounced like a ball on Mars? How many tried to?

The answer to Why a rover bounces after landing on Mars? is "the Mars Exploration Rovers" of which there were two. However, they might not be the only spacecraft to use bouncing like a ball ...
0
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2answers
159 views

Why a rover bounces after landing on Mars?

Sometime ago I was watching a video which showed that when a rover lands on mars surface it will keep bouncing on Mars' surface like a ball until it gets rid of energy and then it becomes static. But ...