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

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

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

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

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a ...

The answers to those questions depend on how we define the death of the solar system.

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

The Sun is a powerful, awe-inspiring force at the center of our solar system. Its brilliance lights up our sky and sustains ...

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

KQ14, nicknamed "Ammonite", was discovered using the Subaru Telescope and is a highly elliptical object with a perihelion and ...

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.