A group of astronomers has found a solar system 116 light-years from Earth that seems to challenge current theories about how ...

Don't miss this chance to see all seven of our solar system neighbors in the sky at the same time. The planetary alignment ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

Astronomers have found a distant world that challenges planetary formation theory, with a rocky planet where gas giants should be.

On February 28, 2026, the evening sky will offer a rare celestial geometry: six planets of our Solar system will seem to ...

Some parades occur when only three or four planets align in our sky, but the coming one on Feb. 28, 2026, is a bit more rare.

Add Yahoo as a preferred source to see more of our stories on Google. Digital art of distant planet - Dottedhippo/Getty Images On August 24, 2006, our solar system lost a planet. It wasn't by ...

Astronomers have discovered seeds of rocky planets forming in the gas around the baby sunlike star providing *** peek into the start of our own solar system. The the thing that we've discovered is ...