How have some stars had time to die since the universe began?
How many moons does neptune have?
What are gamma ray bursts?
How many black holes are there?
Does non-carbon based life exist somewhere in the universe?
How many moons do ceres have?
Is the gravitational pull on an object equalized if the object is at the center of a planet, i.e. Surrounded by the mass of the planet, which is creating the gravity?
Is pluto really a planet?
How long is a day on saturn?
How many planets are in the new solar system?
If gravity only attracts mass and if light does not have mass why does it appear to bend when passing a planet?
Did water come from comets?
What are asteroids like?
How do clouds form?
How is saturn like earth?