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In early universe, galaxies were awake or asleep, says study
Astronomers captured light from 40,000 galaxies and discovered that even in the early universe, galaxies were either awake or asleep.
June 27, 2011
Pandora’s cluster unveiled with new clues
Astronomers use various telescopes to piece together the complex history of Pandora's cluster, showing a pile-up of at least four separate galaxy clusters.
June 26, 2011
Spacecraft rendezvous with icy world: But which one?
The New Horizons spacecraft will have enough fuel for a side trip to a frozen object near Pluto, and IceHunters wants your help in picking the spacecraft rendezvous.
June 26, 2011
Flames of Betelgeuse in new image
Infrared imagery from the Very Large Telescope shows a dazzling nebula around Betelgeuse, one of the brightest stars in the night sky.
June 24, 2011
See a glowing emerald nebula in the Milky Way
Spitzer Space Telescope captured the infrared light from an emerald nebula, RCW 120, likely surrounding terrifically hot giant stars. See it here.
June 23, 2011
Phobos slips past Jupiter
The Mars Express spacecraft observed an alignment of Jupiter and the Martian moon Phobos. Captured images now appear as an animation of this rare event.
June 20, 2011
Major drop in solar activity ahead, scientists say
The sun might be headed for a rest period, according to the National Solar Observatory and the Air Force Research Laboratory. Read more about the possible drop in solar activity.
June 14, 2011
Asteroid Vesta in video from Dawn spacecraft
A video lets us begin to glimpse surface details on the giant asteroid Vesta, as NASA's Dawn spacecraft heads in for a final approach.
June 14, 2011
Vesta and Ceres targets of Dawn spacecraft
Chris Russell on NASA's Dawn mission to orbit around two of the biggest bodies in the asteroid belt: Ceres and Vesta. First stop Vesta in July 2011.
June 14, 2011
Two monster black holes active in nearby galaxy
A second supersized black hole has been discovered at the heart of a nearby galaxy - Markarian 739 - already known to be sporting one.
June 13, 2011
