How far away from earth, is space?
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?
What is difficult about being an Astronomer?
Tell me how long is a day on saturn?
Rounded off to the nearest trillion, how many miles is in a light year?
How fast is the solar wind?
Sam langley invented what instrument, which allows astronomers to measure the energy output of the sun and other stars?
Who stated that planets are originated from the collision of the sun and comet?
Is there water in moon rock?
Is pluto really a planet?
How many planets are in the new solar system?
How can space expand faster than the speed of light?
The persied meteor showers are viewed in the state of maine during what month?
The kappa cygnids and the northern delta aquarids are names for what phenomena?
Explain how can space expand faster than the speed of light?
