would the gravity on mars squish a person?
NASA announced that there is planet nine ,anyone excited?
Zack - Mr. GenXer
As a space alien visiting earth, what would be your #1 concern?
if you weighed 50 kg on earth how much would you weigh on mars?
How far away would something have to be from Earth to still not be orbiting Earth?
If you took a trip off planet this week and came back after 25 years, what changes would you expect to find?
If aliens invaded Earth disguised as humans, where would you expect to find them? What jobs would they be doing? What would be their intentions? How might you interact with them?
why people did not explor saturn from earth?
If you could create your dream planet, what would it be like?
Trivia:When Eugene Cernan and Harrison Schmitt were the last people to walk on the moon, what number was their Apollo mission?
What do you think of the possible EM Drive? Is it a scam, or does it really "break" Newton's Third Law?
If you had a spaceship, what would you name it?
Tris Fray Potter
If the universe is infinite, then time is also infinite. If this is true, then why isn't the whole sky always light because light from the furthest stars have had an infinite time to get to us? And space is infinite, therefore there must be infinite stars in every possible direction, meaning that the luminosity would have to be pretty freaking bright.
how many planets like our own could there be out there with possible life on?
Did Mars have life billions of years ago?
Will there be life on other planets?
Okay hypothetically. If the distance in space i want to travel is 1 light year. And I know it will take me 50 years to get there. how fast am i going?
how many earths can fit into venus?
A spaceship is looking for planets that could support life. What do you think? It is important to know if there is life on other planets.
Today, 30 years ago, the challenger shuttle exploded - where were you? Iwas working in austin texas