Ceres, like Pluto, clearly doesn’t pass this criteria: the asteroid belt in which Ceres resides is evidence of a “failed” planet that didn’t clear its neighborhood.

Ironically Pluto’s loss in this matter turns out to be Ceres’ gain, as the latter object also satisfies the defined characteristics of a dwarf planet.

For now, Pluto, Charon, Xena, and Ceres are “dwarf planets": spherical objects that circle the sun and are not satellites of other bodies, but that have not cleared out their orbits.

In 2006, the International Astronomical Union (IAU) famously demoted Pluto to a dwarf planet. Things have been a bit of a mess since then — so is it time to redefine the planet?

Ceres in Taurus Dates: May 8 to August 1, 2020. Discovered in 1801 and having initially been deemed a planet by astronomers, Ceres is the largest body in the asteroid belt that lies between Mars ...

Watch live online as the dwarf planet Ceres swoops in front of the 'grand design' spiral galaxy Messier 100 this weekend.

Evidence of any LGMs – little green microbes – will be devilishly hard to find, as the paper suggests that any “period of habitability” on Ceres existed between ~0.5 and 2 billion years after its ...

Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

Am I seeing spots before my eyes? New images from the Dawn spacecraft show lots more detail on the asteroid Ceres. We're getting closer and closer to Pluto.