Interstellar comet 3I/ATLAS is giving astronomers a rare, close look at material that formed far beyond our planetary ...

Today, Mars is known as the red planet, for its rust-colored desert landscape. Once upon a time, Mars was a very different ...

Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

Early image of interstellar object 3I/ATLAS sparks debate among scientists, fueling speculation on cometary behavior versus ...