New Dwarf Planet Has Most Distant Trajectory KnownAlexandra WitzeNature magazine
New Dwarf Planet Found in Our Solar SystemCalla Cofield,SPACE.com
A new set of color-coded maps released by NASA is offering amazing views and fresh data on thedwarf planet Ceres. One map shows more than a dozen recently approvednames for features on Ceres, all based on agricultural spirits, deities and festivals from cultures around the world. These includ...
The dwarf planet Ceres, once thought to be a dead and static rock, may have water cycles.Observations from the Dawn spacecrafthave shown a crater wall becoming icier as the sun’s position changed in the sky over the course of six months, indicating that subsurface ice particles ...
After spending several weeks in the shadow of Ceres, NASA's Dawn spacecraft is finally getting a close-up glimpse of the dwarf planet. Ceres' cratered north pole blazes through the darkness innew images captured by Dawnon April 10. The photos are the highest-resolution views of the world ...
The strongest case for demoting Pluto from a planet to a dwarf planet came with the 2005 discovery of Eris—an object roughly the same size as Pluto that orbits farther from the sun in an icy region beyond Neptune known as the Kuiper Belt. The discovery of more objects larger than asteroi...
The dwarf planet Eris's icy surface may have changed in the last few years (Illustration: NASA/JPL-Caltech) The surface of the largest known 'plutoid' appears to have changed in recent years, according to new measurements of how elements are layered on i
If you thought the scientific community had put a lid on this categorization brouhaha, you were wildly mistaken. The definition of a dwarf planet is fairly cut and dry. To be considered a dwarf planet, the object must orbit the sun, it must have enough mass to assume a roundish shape, ...
They are three words that soon will never be able to be used to describe the dwarf planet Pluto again — and they are about to witness their own expiration. "Not yet explored." The phrase appears on the bottom of a 1991 29-cent U.S. stamp flying on New H
Dawn arrived at the 590-mile-wide (950 km) Ceres on March 6, in the process becoming the first spacecraft ever to orbit a dwarf planet, as well as the first to circle two objects beyond the Earth-moon system. The probe just departed its first science orbit at Ceres; on Saturday (May...