For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

A potential dwarf planet has been discovered in the outer reaches of our solar system, orbiting beyond Neptune. Its presence there challenges the existence of a hypothetical body known as Planet 9 ...

The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...

All of the planets of the solar system are visible together in the night sky right now, providing stargazers with a "spectacular" show to end the year. Over the next few days, ...

Cheng said the discovery of 2017 OF201 has implications for hypotheses involving the potential existence of a ninth planet in our solar system, ... The Best Cartoons on Donald Trump. June 27, 2025 ...

Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions of years ago. The find ...

The dwarf planet is one of the fastest spinning objects in the solar system and is covered in crystallized water. Due to its fast spin, Haumea is shaped like an elongated potato or a deflated ...

“An Earth-like planet far beyond Neptune could redefine our understanding of the solar system,” says Lykawka. He adds, “It ...

Every planet in the solar system will be visible on Wednesday (Dec. 28). Here's how to see them : Read moreYou’re wrong. There are six planets visible with the naked eye.

Every Planet of Our Solar System Is Lining up in the February Night Sky. ... The Best Cartoons on Donald Trump. June 27, 2025, at 3:54 p.m. Photos: President Trump's First 100 Days.