Scientists are documenting a planetary system in the Milky Way galaxy that is so starkly dissimilar to our own solar system ...

Two giant planets lighter than cotton candy are giving astronomers a rare new window into the origins of some of the galaxy's ...

Astronomers have discovered a faint new world orbiting a young star after more than a decade of cosmic hide-and-seek.

Since then, astronomers using both space-based and Earth-based telescopes have found more than 6,200 exoplanets scattered ...

From 6 to 9 to 11 to 7 to 8: What 250 years has done to our solar system planet count. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Over the ...

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James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published in the journal Icarus, this extra world might have triggered a violent ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with atmosphere, they have a wide range of characteristics distinguishing them. But if ...

TUCSON, Ariz. (KGUN) — What started as a mysterious red dot in images taken by University of Arizona astronomers has been confirmed as a huge, newly forming planet — and University of Arizona’s ...

TUCSON, Ariz. (KVOA) - Astronomers have confirmed a new planet in one of the youngest solar systems ever found, thanks to University of Arizona technology. The system, called WISPIT 2, was first ...