Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

NASA's Lucy will venture as close as 596 miles to this asteroid, an estimated 2 ½ miles in length but much shorter in width.

If future Mars colonizers want to survive without pressure suits, they’ll need to generate a denser atmosphere. One way to ...

Rather, Levison said the asteroid may resemble a bowling pin or even a snowman like Arrokoth, the Kuiper Belt object visited by NASA's New Horizon spacecraft in 2019. The other possibility is that ...

Astronomers are applying new image-processing techniques to previously released Hubble observations in honor of the space ...