How Did the Solar System Form? The tale of our sun may begin with another star: a predecessor whose fiery death brought about the birth of our solar system.

Over four billion years ago, the solar system was a wild and dangerous place. Swirling clouds of dust and gas slowly turned ...

Four and a half billion years ago Jupiter rapidly grew to its massive size. Its powerful gravitational pull disrupted the ...

Astronomers have discovered a brand new type of planet outside our solar system that, even in its infancy, is already bigger ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

The textbook picture of how planets form—serene, flat disks of cosmic dust—has just received a significant cosmic twist.

A team from Nagoya University in Japan and the Italian National Institute for Astrophysics (INAF) have used a new method to ...

NASA’s OSIRIS-REx samples from asteroid Bennu reveal stardust, water-driven chemistry, and clues to life’s origins in the ...