NASA’s InSight lander listened to Marsquakes for four years. The tremors revealed that Mars may have a solid inner core.

A simple core of pure iron and nickel couldn’t account for the observed properties. The Martian core must be rich in “light ...

Astronomers have directly spotted a rare young planet, WISPIT 2b, still forming within the gap of a dusty ringed disk around ...

For decades, scientists have puzzled over the deep interior of Mars. Did it resemble Earth, with a solid center wrapped in a ...