A rare observation opportunity revealed the presence of a thin atmosphere around a small object beyond Pluto.

A comet tearing through the inner solar system at roughly 58 kilometers per second formed between 10 and 12 billion years ago ...

A team of professional and amateur Japanese astronomers found evidence for a thin atmosphere around a small body in the outer ...

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. Called 2020 VN40 and first discovered in ...

Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2026. Should Pluto be a bona fide planet again? NASA is working to "revisit the discussion" on ...

The celestial body’s status as the solar system's ninth planet was withdrawn in 2006. Now some experts say we might want to ...