Astronomers using NASA's Spitzer and Hubble space telescopes have probed the stormy atmosphere of a brown dwarf, creating the most detailed "weather map" yet for this class of cool, star-like orbs.
Newly released Hubble Space Telescope images of a vast debris disk encircling the nearby star Fomalhaut, and of a mysterious planet circling it, may provide forensic evidence of a titanic planetary disruption in the system.
Theorists expect gamma-ray outbursts occur only near a galaxy's central black hole. A few rare observations suggested otherwise.
NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, set its X-ray eyes on a spiral galaxy and caught the brilliant glow of two black holes lurking inside.
NASA's WISE mission has found the closest star system discovered since 1916 -- a pair of brown dwarfs right in our celestial backyard.
After three years in space, NASA's Fermi Gamma-ray Space Telescope is now extending its view of the high-energy sky into what to date has been largely unexplored territory.
Citizen scientists are invited to help astronomers by tagging clouds and holes in cosmic images from the Spitzer and Herschel space telescopes.
A new study using data from NASA's Spitzer Space Telescope suggests a cause for the mysterious glow of infrared light seen across the entire sky.
What was once a fairly average star, not much different than our sun, can be seen unraveling at the seams in this new image from the Spitzer and GALEX space telescopes.
Astronomers using NASA's Spitzer Space Telescope have announced the most precise measurement yet of the Hubble constant, or the rate at which our universe is stretching apart.