Recent activity by Kelvindhope

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What is an event horizon?

asked Jun 13, 2024 in Science and Education

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What are the different types of galaxies?

answered Jun 13, 2024 in Science and Education

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How do we know the universe is expanding?

answered Jun 13, 2024 in Science and Education

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What is redshift?

answered Jun 13, 2024 in Science and Education

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What is the role of gravity in the universe?

answered Jun 13, 2024 in Science and Education

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What is a quasar?

answered Jun 13, 2024 in Science and Education

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What is a neutron star?

answered Jun 13, 2024 in Science and Education

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How do astronomers measure distances in space?

answered Jun 13, 2024 in Science and Education

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What is cosmic microwave background radiation?

answered Jun 13, 2024 in Science and Education

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What is the observable universe?

answered Jun 13, 2024 in Science and Education

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What is the Hubble Space Telescope?

answered Jun 13, 2024 in Science and Education

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How do we detect exoplanets?

answered Jun 13, 2024 in Science and Education

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What are exoplanets?

answered Jun 13, 2024 in Science and Education

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What is a light-year?

answered Jun 13, 2024 in Science and Education

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What is the speed of light?

answered Jun 13, 2024 in Science and Education

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What is a supernova?

answered Jun 13, 2024 in Science and Education

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How do stars form?

answered Jun 13, 2024 in Science and Education

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What is the Milky Way?

answered Jun 13, 2024 in Science and Education

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What is dark energy?

answered Jun 13, 2024 in Science and Education

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What is dark matter?

answered Jun 13, 2024 in Science and Education

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