Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our ...

The meteorite Northwest Africa (NWA) 12264 might cause changes to the timeline of planet formation, affecting the knowledge ...

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

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

Astronomers have spotted a planetary system being conceived from the swirl of gas and dust surrounding a star, giving us an ...

Nearly a month ago, a mysterious object was seen hurtling through the solar system and later confirmed as an interstellar ...

The astronomers observed hot minerals just beginning to solidify – the first specks of planet-forming material, the ...

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one ...

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

Astronomers have discovered the earliest seeds of planets forming around HOPS-315, a baby star located 1,300 light-years away ...

Previously, astronomers have observed giant planets, like Jupiter, forming in the giant discs around young stars. According ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory about the possibility of a giant ninth planet. The dwarf planet's existence ...