The first definition would allow Pluto, along with Ceres and all of Pluto's co-orbital friends, to become planets. The latter ...

They got kicked out soon, but then when we started being able to see asteroids, Ceres, Vesta ... And if you are still a Pluto-is-a-planet holdout, like we were, [Michael]’s argument that ...

it’s understandable that the IAU faced criticism from the public for redefining a "planet" in such a way that seemed almost ...

Gonggong is a dwarf planet and a member of the scattered disc beyond Neptune. As of 2019, its distance from the Sun is 88 AU, and it is the sixth-farthest known Solar System object.

Today NASA said that the Dawn spacecraft has fallen out of contact with Earth, presumably because it’s run out of the thruster… Read More The once-mysterious bright spots shining on the surface of the ...

An curved arrow pointing right. We all know Neil deGrasse Tyson's stance on Pluto and its status as a planet. But what does the world renowned astrophysicist consider to be the most underrated planet?

Defy gravity with out-of-this-world space trivia collected from the National Aeronautics and Space Administration ...