A new study may visually solve an enduring mystery about a bright object that's been studied since the 19th century ...

Astronomers have made an unexpected and groundbreaking discovery in our solar system—a ring system forming around Chiron, a ...

When astronomers pointed the James Webb Space Telescope (JWST) at a faint object orbiting a distant star system, they weren’t ...

We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a ...

It came from another star and passed through our solar system at impossible speed. Astronomers scrambled to study it, but it ...

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

NASA recently launched a telescope designed and built by UMass Lowell and the space agency that seeks to identify planets beyond the solar system and other objects in space that would ...

What a coincidence! The mysterious interstellar object known as 3I/ATLAS has been streaking through the Solar System at ...