Question

1:)WHat will happen if the whole space has stopped its rottation.?

2:)what is space?

3:)our galaxy have intestellar matter which has 90percentage of hydrogen atom.then how could we say,the galaxy is vacum only with planets?


4:)why cant we send algae to mars which inhales co2 and release o2.and thus man could survive in mars ?

Answer 1

2 a continuous area or expanse which is free, available or unoccupied