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

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

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

Is alien invasion armageddon coming for us in November? That's the speculation set off by a legitimate academic study ...

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

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

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

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

AROOSTOOK COUNTY, Maine (WAGM) - Aroostook County’s iconic Maine Solar System Model is about to get even bigger. Two new ...