A mysterious spike of platinum buried deep in Greenland’s ice has long fueled theories of a catastrophic comet or asteroid strike 12,800 years ago—possibly triggering a sudden return to icy conditions ...
Magnetic crystals provide the earliest evidence yet of the plate tectonics that likely made Earth habitable, pushing its start back by 140 million years.
Astronomers using the Webb telescope see volcanic activity on Jupiter's moon Io in a whole new light
The James Webb Space Telescope reveals active volcanoes on Io in unprecedented detail thanks to an innovative technique.
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