Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Astronomers have found a distant celestial body — ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar ...

A newly discovered dwarf planet called 'Ammonite' (2023 KQ14) has been spotted in the outer solar system, and it could be another nail in the coffin for the Planet Nine hypothesis. When you purchase ...

On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Eris is just ...

What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...