Astronomers have observed an occultation of a distant star to get a better look at the little-known dwarf planet Haumea, which orbits the Sun beyond Neptune. Scientists were able to pin down the planet’s size, shape and density, and make a surprising new discovery: Haumea has a rocky ring around it.
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New data from NASA's Dawn spacecraft suggests that Ceres' surface is too strong to be dominated by ice.
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NASA scientists have taken their first look at the interior of the dwarf planet Ceres, by tracking tiny alterations in the motion of the Dawn spacecraft as it continues to orbit the enigmatic planetoid.
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A new dwarf planet has been identified on the fringes of our solar system. Designated 2015 RR245, the object’s size isn’t known just yet, but its discoverers estimate it to have a diameter of 700 km (435 miles) and one of the largest orbits of a dwarf planet, circling the Sun once every 700 years.
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Using data collected by NASA's Dawn spacecraft, an international team of astronomers has created a Map of the dwarf planet Ceres' northern hemisphere detailing regions that exist in permanent shadow.
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Using data captured by NASA's New Horizons spacecraft, a team of researchers from Purdue University has estimated the depth of the vast nitrogen ice pool believed to exist beneath the Sputnik Planum region on the dwarf planet Pluto.
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NASA has released a fresh mosaic of Pluto's surface, stitched together from the highest resolution images captured by the spacecraft as it sped past the planetoid on July 14, 2015.
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According to a team of astronomers making use of data from two powerful orbital telescopes, a dwarf planet known as 2007 OR10 orbiting in the far reaches of our solar system is significantly larger than previously believed.
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A team of astronomers has announced the discovery of a new moon located in the far reaches of our Solar System, orbiting the little-known dwarf planet Makemake.
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Former planet Pluto has turned out to be much more weird and wonderful than many would have guessed. The latest find from NASA observations shows what appears to be a lake of frozen liquid nitrogen on its surface.
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