Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

To reproduce the orbits and masses of the terrestrial planets (analogs) of the solar system, most studies scrutinize simulations for success as a batch. However, there is insufficient discussion in ...

Moon’s precursor planet, Theia, disappeared billions ago, leaving scientists no direct chemical evidence to support the ...

American space agency NASA revealed it already used 12 major space assets to track and study the 3I/ATLAS interstellar comet.

A study simulating the final stages of terrestrial planet formation shows that ‘hit-and-run’ encounters play a significant role in the acquisition of water by large protoplanets, like those that grew ...

An international team has made a significant breakthrough in understanding the tectonic evolution of terrestrial planets.

The comet 3I/ATLAS is taking a long holiday journey this year. It’s visiting from another solar system altogether. Those ...

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

The telescope is part of a cluster of four observatories that include two in Hawaii and one in South Africa, whose job is to ...