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

Astronomers have discovered an object at the edge of the solar system that is locked in a strange rhythmic dance with the ice ...

Would one frozen world, just visible on the rim of the Sun’s kingdom, turn decades of speculation on the concealed layout of ...

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

Astronomers have, for the first time, captured what they believe are the very first moments of rocky planet formation around ...

In a cosmic first, astronomers have spotted the earliest signs of rocky planet formation around a young star. The discovery ...

A tiny object far beyond Pluto, newly discovered by the Subaru Telescope, could reshape our understanding of the early Solar System. Named 2023 KQ14, this rare “sednoid” follows an unusual orbit that ...

While astronomers have previously seen young discs that contain newborn, massive, Jupiter-like planets, McClure says, “we’ve ...

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

Our Solar System is beautiful, mysterious, largely unknown… and accessible. In the next hundred years, we can send robotic craft, and even human hands, to many of those worlds. We can ride along ...

Our Solar System is full of mysteries, but if the inner planets are a puzzle, the boundary between the Solar System and interstellar space is a secondhand puzzle with half the pieces missing.