More recently, astronomers have proposed a theory for its volatile nature, which explains the star's seemingly erratic ...

The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

The two objects make for a strange pair. Unlike Betelgeuse, which is approaching the end of its life, the blue-white ...

Gain access to all articles, ad-free browsing, exclusive content, The Vault, and other benefits!

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our understanding of how planets take shape — not only in our solar system, but ...

The star is surrounded by a protoplanetary disk, and this disk is the first evidence of debris condensing into what will ...

Pope Leo XIV on Sunday called astronaut Buzz Aldrin and visited the Vatican's astronomical observatory in Castel Gandolfo to ...

A tiny object far beyond Pluto, newly discovered by the Subaru Telescope, could reshape our understanding of the early Solar ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

Answer 17: A meteoroid is a small rocky or metallic body in space. A meteor is the streak of light produced when a meteoroid ...

Scientists are racing to learn as much as possible about the interstellar comet 3I/ATLAS before it fades from view forever ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...