Tell me how many moons does jupiter have?

108

What is the term for the amount of energy released from each square meter of an objects surface each second?

127

Which star is called the polaris?

100

How have some stars had time to die since the universe began?

118

How can space expand faster than the speed of light?

147

Do galaxies interact?

110

This powerful telescope weighs about 11 tons, has a primary mirror 7.9 feet in diameter, and orbits about 380 miles above the earth?

97

How far from earth, is the moon?

127

In the doppler effect, what is the correct term for the change in the color of light when an object that is emitting light is moving toward the observer?

175

Explain how did the moon form?

97

How long is it until our solar system ceases to exist?

129

Who stated that planets are originated from the collision of the sun and comet?

124

How is saturn like earth?

114

Explain how is venus different to earth?

128

How fast is the solar wind?

120