On May 21, the International Astronomical Union’s Minor Planet Center announced the discovery of 2017 OF 201, which, because ...

In April, astronomers said they had detected a possible signature of life on the exoplanet K2-18b. Now, three independent ...

One Pluto year equals 248 Earth years. At 1473 miles in diameter—about half the width of the United States—Pluto is the ...

There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be ...

Following the addition of Mario Kart 8 Deluxe scenes (what Nintendo calls its alarm clock’s wake up experiences) last ...

T he Solar System has just gotten a new official member. Currently, with the name of 2017 OF 201, this is a trans-Neptunian ...

A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the Institute for Advanced Study's School of Natural ...

What did NASA’s New Horizons find when it reached Pluto? The results shocked astronomers: Pluto wasn’t a lifeless rock - it was geologically active, covered in glaciers, and had a hidden underground ...

From gravel-size meteoroids to mountain-size asteroids and even visitors from other star systems, space is packed with ...