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

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

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

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

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

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

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised ...

Surprised astronomers said Thursday they have discovered a star with planets in a bizarre order that defies scientific expectations -- and suggests these faraway worlds formed in a manner never seen ...

Scientists say a nearby red dwarf star hosts a planetary lineup that looks like a mirror image of our own solar system, with rocky worlds bookending a pair of gas-rich planets. Around the star LHS ...

The discovery provides a precious peek into the dawn of our own solar system as well The discovery provides a precious peek into the dawn of our own solar system as well The discovery provides a ...