NASA

Wonder why Mars is red or how it formed? What about its gravity, radiation, iron core and layers, or magnetic fields? How does time or the way things sound differ there? Ask all about Mars here.


650 people have submitted 1129 questions and cast 34874 votes

Does Mars have a dynamic atmosphere, or has it reached a state of equilibrium?
2.2K Total Votes

How long is a Martian day?
1.5K Total Votes

What are the main hurdles we need to overcome to put people on Mars?
1.1K Total Votes

did mars have a magnetic feild?
1.4K Total Votes

 hummingbird
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Does Mars have seasons? If so, how long does each one last?
896 Total Votes

 hawk
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Can earth plants grow on Mars?
1.1K Total Votes

Why is Mars red?
801 Total Votes

Were Mar's moon once part of Mars (as ours is thought to have been once part of Earth) or external rocks captured by the planet's gravity field?
701 Total Votes

 camel
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do you think that the liquid erosion on mars meant that it had an atmosphere to heat it. therefor it must have had a magnetic feild to hold its atmosphere in place. so how did the magnetic feild just "vanish"?
682 Total Votes

 hummingbird
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Why go to Mars in the first place?
798 Total Votes

 cheetah
reputation icon10.16K