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

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

Our solar system hosts almost 900 known moons; more than 400 orbit the eight planets while the remaining orbit dwarf planets, ...

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

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

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky ...

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

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

SIX planets will align in the evening sky this week in a rare cosmic phenomenon you’ll be able to see with your own eyes. Mercury, Venus, Neptune, Saturn, Uranus, and Jupiter will all appear ...

Woman wanted after pound of cocaine, $44,000 in cash seized from home in Campbell County A Gretna woman is wanted on a felony drug charge after the Campbell County Sheriff's Office executed a search ...