Dwarf planets
Latest about Dwarf planets
Ceres: The closest dwarf planet to Earth
By Keith Cooper last updated
Reference Learn all about the dwarf planet Ceres, including its discovery, location, composition and the Dawn mission.
Pluto's 'almost twin' dwarf planet Eris is surprisingly squishy
By Sharmila Kuthunur published
Pluto's 'almost twin' dwarf planet Eris has a rocky core blanketed by an icy shell, which appears to be flexing slowly.
Dwarf planet Ceres could be a great place to hunt for alien life. Here's why
By Sharmila Kuthunur published
Asteroid impacts on dwarf planet Ceres influenced the presence of organic aliphatic molecules, according to new research.
See dwarf planet Haumea at its closest to Earth in 285 years tonight
By Stefanie Waldek published
Dwarf planet Haumea reaches both opposition and perigee on April 20, making this a prime opportunity to see the dwarf planet in the night sky.
Spot dwarf planet Ceres during the new moon tonight
By Robert Lea published
The dark skies of the new moon will offer skywatchers the chance to spot Ceres tonight (March 21), as the dwarf planet reaches opposition.
Astronomers spy new class of dark, water-rich asteroids like dwarf planet Ceres
By Sharmila Kuthunur published
Astronomers interpret the spectra of 10 well-known dark asteroids and find them to be water-rich like the dwarf planet Ceres.
A dwarf planet beyond Neptune has a mysterious ring that astronomers can't explain
By Tereza Pultarova published
A mini-planet orbiting in the frigid outer reaches of the solar system has a Saturn-like ring of dust and debris that defies the rules of physics, a new study has revealed.
NASA seeks origin of 'weird' fast-spinning dwarf planet Haumea
By Robert Lea last updated
The dwarf planet Haumea may be the weirdest object in the solar system. Now NASA researchers may finally understand how it was formed.
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