Astronomers have taken a photograph of a baby planet beyond the solar system that may reveal clues as to how planets such as Jupiter are formed and influence their planetary siblings, a study released ...

The comet 3I/ATLAS is taking a long holiday journey this year. It's visiting from another solar system altogether. It's the third interstellar object recorded passing through our solar system.

CAPE CANAVERAL, Fla. (AP) — NASA unveiled close-up pictures on Wednesday of the interstellar comet that’s making a quick one-and-done tour of the solar system. Discovered over the summer, the comet ...

NASA is in the midst of a solar system-wide observation campaign, turning its spacecraft and space telescopes to follow comet 3I/ATLAS, the third known interstellar object to pass through our solar ...

Sometime in 2029, the European Space Agency is scheduled to launch its Comet Interceptor Mission. The Interceptor will wait for a long-period comet to arrive in the inner solar system then set off on ...

Comet 3I/ATLAS leaving the Solar System marks a rare final farewell. Learn how to watch the last livestream and why scientists care, today!!