Rebecca Boyle

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    As Planet Discoveries Pile Up, a Gap Appears in the Pattern

    Astronomers are puzzling over a paucity of planets in the galaxy measuring between 1.5 and two times Earth’s size.

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    Galaxy Simulations Offer a New Solution to the Fermi Paradox

    Astronomers claim in a new paper that star motions should make it easy for civilizations to spread across the galaxy, but still we might find ourselves alone.

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    How Nearby Stellar Explosions Could Have Killed Off Large Animals

    A new study suggests that subatomic particles called muons streamed through the atmosphere and fatally irradiated megafauna like the monster shark megalodon.