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

Astronomers have found a compact solar system whose planets line up in a way that, according to current models, should not be ...

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

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

This rogue star has been traveling the Universe. And now, it's finally entering our Solar System. But this isn't just any ...

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 ...

Astronomers have found a rocky planet where it should not exist, orbiting far from a cool red star. Could this strange ...

Add Yahoo as a preferred source to see more of our stories on Google. This artist’s illustration provided by the European Southern Observatory shows an exoplanet orbiting around two brown dwarfs, ...

Recently, a group of scientists created a detailed map of this space, showing that the bubble is lopsided in both shape and ...