What, or when, would aliens see, if they looked at the earth?
Answers to Space Science Questions
Answers to questions about space science, astronomy, rockets, planets, galaxies, stars...
02 October 2005
Why does it get darker earlier in the winter than it does in the summer?
20 March 2005
How many cells are there in the brain, and how powerful is a black hole?
30 January 2005
Is it possible that life on Mars managed to hitch a ride on a meteorite and started life on Earth?
30 January 2005
If a meteorite hit the earth, could life be blown onto other planets?
19 December 2004
Are there any substances on other planets that can be used for energy?
28 November 2004
I was looking at the moon and saw what looked like a huge great rock float past it. What was it?
17 October 2004
Does the sun affect the tides like the moon?
20 March 2003
How long until the sun is a mile in diameter?
17 March 2003
Why don't rockets leave big holes in the ground when they launch?