Answers to Space Science Questions

How long does it take the sun's rays to reach Pluto?

Why does it get darker earlier in the winter than it does in the summer?

How many cells are there in the brain, and how powerful is a black hole?

If a meteorite hit the earth, could life be blown onto other planets?

Is it possible that life on Mars managed to hitch a ride on a meteorite and started life on Earth?

Are there any substances on other planets that can be used for energy?

I was looking at the moon and saw what looked like a huge great rock float past it. What was it?

Does the sun affect the tides like the moon?

How long until the sun is a mile in diameter?

Where does the rainbow end?

Why don't rockets leave big holes in the ground when they launch?