A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

The Subaru Telescope has made an exciting discovery: a small body beyond Pluto, with implications for the formation, evolution, and current structure of the outer solar system.

Interstellar Comet 3I/ATLAS was the third visitor from outside our system, and its origins were being studied using an interstellar visitor model.

Planets may start forming before their stars are even done New model accounts for the remarkably consistent total mass of planets relative to host star's mass Date: June 9, 2025 Source: Southwest ...

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

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

A groundbreaking study published in Communications Earth & Environment has called into question the long-standing assumptions ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen – possibly predating our solar system by more than three billion years, researchers say. The "water ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar system by more than 3 billion years, researchers say.

The award-winning PBS science series, NOVA, a production of GBH, will premiere an epic new five-part series, SOLAR SYSTEM, Wednesdays, beginning October 2 at 9pm ET/8C on PBS.

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

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.