NASA's WISE has turned up no evidence of the hypothesized celestial body in our solar system commonly dubbed "Planet X."
NuSTAR has, for the first time, imaged the radioactive "guts" of a supernova remnant, the leftover remains of a star that exploded. Image credit: NASA/JPL-Caltech/CXC/SAO
Wide-field Infrared Survey Explorer (WISE)
WISE is mapping the entire sky in infrared light, uncovering the coolest stars, the universe's most luminous galaxies and some of the darkest near-Earth asteroids and comets.
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