Which of these 2 objects is one AU apart?

The _____ states that between 15 and 20 billion years ago, the universe began expanding from a single point?

A red shift in the spectrum of the light from an object indicates the object is moving _____ you.

Which of these 2 objects\' distances would be best measured with light years?

How do scientists know the universe is expanding?

Which visible light waves are the longest on the electromagnetic spectrum?

The force that is opposite of gravity that scientists think is pushing the universe part is __________.

90 percent of the mass of the universe is made of________.

Which is an example of the Dopper Effect?

What theory about the origin of the universe has been disproven?

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