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Astronomers are able to determine the speed at which certain redshift stars move using: The doppler effect

Radiotelescopes reveal that space is full of: Cosmic microwave background radiation

Some astronomers study how matter behaves using: Particle accelerators

The idea that everything in the universe came from a single dense ball 10 to 20 billion years ago has been named: The Big Bang Theory

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Cookiies4U

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2y ago

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