Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

Nearly a month ago, a mysterious object was seen hurtling through the solar system and later confirmed as an interstellar ...

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

The solar system consists of eight planets, several dwarf planets, hundreds of moons, and billions of asteroids, comets and ...

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

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

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

ETC has published a new report indicating that global power systems reliant on wind and solar energy can provide electricity at costs comparable to fossil fuel-based power systems.

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

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

The finding marks the first time a planetary system has been identified at such an early stage of formation. One U of M ...

Astronomers have discovered a "fossil" world lying in the outskirts of the solar system, according to new research.