342 results
Spirit's tracks uncover silica deposits that hint at past hydrothermal activity.

Solar System

Mars Rover Unearths Ancient Hot Springs

The Mars rover Spirit uncovers evidence for hydrothermal activity on the Red Planet and a possible cache for microbial fossils.

Stellar Science

Puny Star's Big Flare Wows Astronomers

While a NASA satellite looked on, last month a red dwarf in Lacerta erupted with a titanic — and unexpected — burst of energy.

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