How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

Neptune stands stationary against the background stars of Pisces the Fish at 11 A.M. EDT. The solar system's most distant ...

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

The Sun, our life-giving star, is slowly dying. In about 5 billion years, it will exhaust its fuel and transform into a red giant, altering the solar system forever. But long before that, the Sun’s ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

New research says that Earth could be ejected from our solar system if a passing star was to come close enough.

I/ATLAS is only the third interstellar object ever detected. You can stream the object live today, or maybe see it from your ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

Passing stars could trigger instability across the solar system, resulting in Earth being hauled out of its orbit.

The Voyager probes we sent from Earth back in the 70s found an incredible 'wall of fire' at the edge of our solar system ...

The question of whether Earth is alone in harboring life has captivated humanity for millennia. In recent years, scientists ...