The newly discovered world — a "sednoid" — challenges what planetary scientists thought they knew about the edge of the solar ...

There’s a visitor in town, and its name is 3I/ATLAS. The presumed interstellar comet presents a rare opportunity for ...

Scientists have spotted a mysterious object flying through our Solar System. A new paper suggests it might be an alien ...

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

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

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

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

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

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

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

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