Earth’s orbit around the Sun defines everything we take for granted. Day and night, the seasons, and the steady presence of ...

Earth and its neighbors orbit the sun on a relatively flat plane. But what's below this plane, and is anythign below the ...

Astronomers found an interstellar "tunnel" - a cosmic channel that connects our solar system to distant stars, according to a ...

Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...