Related topics: nasa

Sensitive instruments to explore metal-rich asteroid

At the very center of the Earth is a core of metal—so hot and so deep down as to be unreachable and impossible to study directly. But we might learn more about it and the cores of other Earth-like planets by studying the ...

A pool at Yellowstone is a thumping thermometer

While the crowds swarm around Old Faithful to wait for its next eruption, a little pool just north of Yellowstone National Park's most famous geyser is quietly showing off its own unique activity, also at more-or-less regular ...

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