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Lucy Was Discovered 50 Years Ago. What’s Changed from 1974 to Now?

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Astronomy Online: Earth #LearnWithMe

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What is a fossil?

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How Do New Kinds of Telescopes Find New Things in Space? with Astrophysicist Michael Shara

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Repatriating Simon’s Outfit to the Tohono O’odham Nation

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How Genetic Changes Help and Hurt Us: The Human Variety Show

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T. rex, Triceratops, Titanosaur–What's the Difference?

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Physics at the Scale of the Universe