What is the expected life of solar system?
Does astronomy help you with other things in life? If yes, what?
How is venus like earth?
Which of the constellations cannot be seen in the summer sky of the northern hemisphere?
How far away from earth, is space?
If gravity only attracts mass and if light does not have mass why does it appear to bend when passing a planet?
Which is largest and most massive star?
Tell me how many moons does neptune have?
What are asteroids like?
What substance is responsible for neptunes blue-green color?
Most astronomers believe that these celestial bodies are at the center of quasars and are the main reason for their large energy emissions?
Tell me how many moons does uranus have?
How old is our earth?
How many earths can fit into jupiter s great red spot?
When did the challenger return to the earth after its first mission?
