Ryugu’s samples reveal that water activity on asteroids lasted far longer than scientists thought, possibly reshaping theories of how Earth gained its oceans. A billion-year-old impact may have melted ...

When Earth was a molten inferno, water may have been locked safely underground rather than lost to space. Researchers discovered that bridgmanite deep in the mantle can store far more water at high ...

NASA scientists have reported an unusual signal in near-Earth space, describing a phenomenon they have not previously observed so close to our planet. The finding, while still being analyzed, ...