Just because Pluto was ruled out as a planet in 2006 doesn’t mean our solar system only has eight planets. The search for Planet Nine is far from over as scientists continue to uncover clues ...

A distant star has just been caught in the act of destroying one of its own worlds, a violent finale astronomers have long predicted but never directly seen. The event offers a preview of the kind of ...

Kerry Breen is a news editor at CBSNews.com. A graduate of New York University's Arthur L. Carter School of Journalism, she previously worked at NBC News' TODAY Digital. She covers current events, ...

Mark your calendars for the last week of February, because one of the coolest celestial events is coming around again: Six planets will be visible in the night sky at the same time. This phenomenon, ...

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

Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? Researchers show that this is not due to the random pull of the planets, but rather the ...

The newly discovered TOI 451 planetary system features three planets orbiting the same sun. CREDIT Illustration courtesy of NASA/Goddard Space Flight Center A newly discovered planetary system will ...

Before the solar system had planets, the sun had rings — bands of dust and gas similar to Saturn’s rings — that likely played a role in Earth’s formation, according to a new study. “In the solar ...

Stargazers are in for a treat this week as a planetary parade is set to take place - just a month after the last planetary spectacle. This latest planetary alignment or "planet parade" - set to take ...