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

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 ...

The universe is always moving. While we've found evidence of rogue black holes and planets, new research suggests that a passing star could be out there somewhere. Unfortunately, If it were to swing ...

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

Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this year.

Interstellar comet 3I/ATLAS made its closest approach to Earth on Friday, Dec. 19. The comet will pass within about 170 million miles of our planet and poses no danger. While not visible to the naked ...

Our Sun’s outer atmosphere, the corona, is millions of degrees hotter than it should be, and no one knows why.