Giant mountains found on Pluto are believed to be volcanoes that spewed out ice and other volatiles, new research presented on Monday shows.
Deep inside the Tarantula Nebula, some 160,000 light-years from Earth, live a pair of very strange stars.
New maps of Ceres show the dwarf planet's mysterious bright spots and huge, pyramid-shaped mountain in a new light.
In a new image release from NASA's Pluto mission, there's yet another landscape that, for now, defies explanation.
In new observations beamed back from Cassini, Saturn's icy moon Tethys has decided to show off its mysterious stripes.
Although NASA's Dawn mission is now carrying out its second mapping orbit of dwarf planet Ceres we're still none the wiser as to what those weird bright patches are.
Strange bright swirls have long been known to exist on the moon's surface and their origin is steeped in mystery -- might comets be the culprit?
During the Rosetta's close flyby of comet Comet 67P/Churyumov-Gerasimenko on Feb. 14, the European spacecraft snapped images of the comet's 'belly' revealing a shadow of itself surrounded by a halo.
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