NASA Psyche mission scientists will need to rethink how they interpret magnetic data from asteroid 16 Psyche after an Oxford ...

Florida Tech astrophysicist Howard Chen is offering new insights to help aid NASA's search for life beyond Earth. His latest theoretical work investigates the TRAPPIST-1 planetary system, one of the ...

The formation of Mercury remains an unsolved mystery. The planet closest to the sun has a disproportionately large metallic core—accounting for about 70% of its mass—and a relatively small rocky ...

New simulations suggest that a grazing "hit and run" collision between a young Mercury and a similarly sized protoplanet may have resulted in its unusual composition. | Credit: NASA/Johns Hopkins ...

Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...

A violent collision in the main asteroid belt may have sent debris raining across the inner solar system about 800 million years ago. The event could explain a long-debated spike in lunar impacts and ...

The early years of our solar system were a period of unimaginable chaos and violence, a gravitational free-for-all where colliding planetary embryos competed for survival. In this tumultuous ...

How will life on Earth end? The answer, of course, is unknown, but two new studies suggest a collision with Mercury or Mars could doom life long before the Sun swells into a red giant and bakes the ...