A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

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

A closer look at the planets around a star called LHS 1903 may just flip our understanding of how planetary systems form.

We know that our Solar System is not the blueprint for all planetary systems out there. There are gas giant planets orbiting ...

Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...

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

Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

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 ...

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system. It’s an unprecedented ...

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