Surface waves help map the interior of Mars

Researchers have observed seismic waves propagating along the surface of a planet other than Earth for the first time. The marsquakes that resulted from two large meteorites that hit Mars were recorded by NASA's InSight lander ...

Researchers explore how impacts 'break in' a new planet

The harder you hit something—a ball, a walnut, a geode—the more likely it is to break open. Or, if it does not break open, it's more likely to at least lose a little bit of its structural integrity, the way new baseball ...

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