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Earth & Environment

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painting of Caesar’s last moments

OUT OF BREATH  Caesar’s last moments have inspired much scientific thinking, as well as a new book.

aviation fire

TOXIC FOAM  The foam used to put out aviation fires often contains toxic perfluorooctanoic acid and related molecules. When these chemicals get into the water supply, they linger for years without breaking down. A new material may offer a better way to filter them out.

New Zealand volcano

UP AND OUT  Seven hundred years ago, a New Zealand volcano (a 19th century eruption is illustrated here) spewed out seven zircon crystals that are providing a peek at the state of magma in underground chambers.

Earth & Environment

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