Forty light-years away, seven Earth-sized planets orbit around a dim red dwarf star in one of the most tightly packed ...

The “Seven Sisters” of the Pleiades are part of a much larger complex that can help reveal our galaxy’s deep history ...

In late April 2026, a long-period comet will swing through the inner solar system. It will likely be visible with binoculars, ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...