Space

Front

Does every black hole contain a singularity?

Back

False

Front

Can gravity form waves?

Back

false

Front

Does the influence of gravity extend out forever?

Back

False

Front

Why did the Big Bang take place?

Back

false

Front

Can a star turn into a planet?

Back

True

Front

How old is the universe?

Back

13.7 billion years old

Front

Why is the universe expanding?

Back

Because this expansion is caused by relative changes in the distance-defining metric, this expansion (and the resultant movement apart of objects) is not restricted by the speed of light upper bound of special relativity.

Front

Which planet most likely has the highest temperature? Options: Earth, Mars, Mercury, Neptune

Back

Mercury

Front

What explains the revolution of a planet?

Back

The Earth revolves around the sun once per year.

Front

What celestial body is at the center of our solar system?

Back

Sun