The monsterous 85-mile-wide comet C/2014 UN271 isn't just the largest icy rock in the Oort Cloud, it's the second most ...

1 of 9 This digital collage brings together our solar system and points beyond in one view. Illustration by NASA/JPL Too small to be called planets, asteroids are rocky chunks that also orbit our ...

"The extraordinary results are an essential step toward understanding the initial conditions that lead to the formation of ...

Researchers now appreciate that gas planets are more complex than first thought. New findings have implications for our ...

There has been a lot of back and forth about the existence of a mysterious ninth planet, often referred to as "Planet Nine" ...

14.61 x 12.36 in. (37.1 x 31.4 cm.) ...

Hycean worlds are also called ocean worlds. They're planets covered in oceans that also have thick hydrogen atmospheres.

The first test images from the Vera C. Rubin Observatory in Chile showcase thousands of previously unknown asteroids and ...

The researches say that the Hycean Habitable Zone (HHZ), when compared to the terrestrial habitable zone, may include smaller ...

NASA launched two 12-inch gold-plated copper disks filled with the sounds of children's laughter, heartbeats, and bird calls.

If our solar system seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, the moon moves through light and shadow, and the sun hangs in the sky. But ...

At 5.97 light-years from Earth, it is the fourth-closest star to our solar system, after the three interconnected stars of ...