They’re not a perfect match, but it’s way too hot on the first planet for us to hop over and confirm for ourselves.

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- only the third ...

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

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.

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

A recent study in Icarus suggests a wandering star could disrupt our solar system. Simulations reveal that a star passing ...

The nights surrounding June 7 will see Jupiter and Mercury crowd together close to the horizon in the northwestern sky.

New research suggests that Mercury's crust is shifting and twisting in unexpected ways thanks to the force of the Sun.

A recent study indicates a small chance that Earth could be ejected from our solar system due to passing stars. Simulations ...

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...