Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...

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

Observations of the young HOPS-315 star system show an environment analogous to what our own nascent Solar System would have ...

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

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

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

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

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

The solar system consists of eight planets, several dwarf planets, hundreds of moons, and billions of asteroids, comets and meteoroids. The exact boundaries of the solar system ar ...

Astronomers first identified these minerals using the now-three-year-old James Webb Space Telescope. To see where exactly the ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...