02.24.12 - Researchers using multiple NASA space observatories have been studying an object known as an ultraluminous X-ray source in the neighboring Andromeda galaxy.
02.24.12 - In 1843, Eta Carinae was the second-brightest star in the night sky. By the 20th century, it was invisible to the naked eye.
02.21.12 - Even stars that appear static are subject to change -- some because the gas disc from their death throes periodically obscure their brilliance.
02.22.12 - Astronomers using data from NASA's Spitzer Space Telescope have, for the first time, discovered buckyballs in a solid form in space.
02.21.12 - Astronomers using NASA's Chandra X-ray Observatory have clocked the fastest wind yet discovered blowing off a disk around a stellar-mass black hole.
02.16.12 - This edge-on galaxy, called ESO 243-49, is home to a mid-sized black hole that may have been stripped off of a cannibalized dwarf galaxy.
02.17.12 - Even stars that appear static are subject to change -- some because the gas disc from their death throes periodically obscure their brilliance.
02.17.12 - Mating of NASA's NuSTAR observatory to its Pegasus rocket is underway.
02.16.12 - February is Black History Month, and to mark the occasion, we recently sat down with John Johnson, scientist at NASA's Exoplanet Science Institute at the California Institute of Technology in Pasadena.
02.13.12 - New images from the Planck mission show islands of star formation and a mysterious haze of microwave emissions in our Milky Way galaxy.