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

NASA’s newly launched IMAP mission is set to tell us more about the boundary between our Solar System and interstellar space ...

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

A comet that was born in another solar system and could be billions of years old is hurdling through Earth’s solar system — a discovery made on July 1 that’s led some astronomers to speculate that the ...

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 ...

A distant gas giant the size of 10 Jupiter planets is now the first planet outside Earth's solar system to be mapped in three dimension, a team of astronomers says. What's more, the researchers are ...