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Space Exploration : Recent Questions and Answers

Find answers to your questions about Space Exploration or help others by answering their Space Exploration questions.

Why are RTGs different colors?

This is an image of the radioisotope thermoelectric generator (RTG) for Cassini: This one was for one left on the Moon: ...

Asked on 01/06/2022

3 answer

Ramscoop for a space station or lunar base?

From what I've read, the Bussard ramscoop has problems which make it impractical as a means of propulsion. However, would it be possible to use it for...

Asked on 01/06/2022

2 answer

If Curiosity had lights, could it drive or work in the evening?

If the Mars rover Curiosity had been equipped with lights, would it be able to drive or do other work in the evening? This could be some combination...

Asked on 01/02/2022

3 answer

Number of segment in Wing leading Edges

Can anyone highlight the basis of having 22 NO’s of segment in wing leading edges of space shuttle. ...

Asked on 12/30/2021 by mystical Kaleidoscope

2 answer

Why are all space initiatives designed to get to space overnight when in Nature all extreme feats are achieved in a gradual process

Is the current design paradigm of space engineers still too anti-naturalistic? Why not design Space Cruisers first large & slow but steady into outer orbit, over months rather than in...

Asked on 12/28/2021 by Kevin bueno

7 answer

After 21 years of silence how and by whom was OSCAR-7 first identified as functional?

This 2017 comment below an answer to What is the oldest artificial satellite still in use? says:But it should be mentioned that AMSAT-OSCAR 7 was silent between 1981 and...

Asked on 12/28/2021

1 answer

What is this "black box" at the top of Apollo 17 CM?

An Apollo 17 recovery image of the top of the CM, ap17-S72-55888 from ALSJ. What is the black box...

Asked on 12/28/2021

2 answer

Where does MSL end and Curiosity begin?

There are tags for mars-science-laboratory and curiosity but I don't really understand how the Mars Science Laboratory begins and the Curiosity Rover...

Asked on 12/26/2021

1 answer

Are we still able to terraform Mars using greenhouse effect?

In the last month, a group from University of Colorado, Boulder, published a paper on Nature Astronomy entitled "Inventory of $CO_2$ available for terraforming Mars", which was highly...

Asked on 12/26/2021 by user17622

1 answer

How sharp are the bits of sand and rock on mars?

Lunar regolith is quite sharp, so abrasive it can cut kevlar. This is because there is no flowing water or substantial atmosphere to erode the material and...

Asked on 12/26/2021

0 answer

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