Galaxy Cluster Collision Left a Clumpy Aftermath
The galaxy cluster Abell 2744 contains so many unusual phenomena that astronomers have dubbed it "Pandora's Cluster," after the mythological box said to contain all the world's ills.
The Hole Picture: Growth of Black Holes and Galaxies Linked from an Early Age
By one billion years after the big bang, galaxies and their resident black holes were already growing in tandem
Caught in the Act: A Black Hole Scuttles a Star
A black hole 3.8 billion light-years from Earth is shown in this artist's representation tearing apart a star that drifted within its gravitational pull.
Shattered Expectations: Ultrabright Supernovae Defy Explanation
A rare, superluminous kind of stellar explosion does not fit into the usual supernova categories
World Science Festival: The Dark Side of the Universe [Replay]
Live from the New York University Skirball Center, Thursday, June 2, from 8 P.M.-9:30 P.M. ET
Dispatches from the May 2011 Dark Matter Symposium at the Space Telescope Science Institute
For four days in May, leading physicists and astronomers gathered in Baltimore to talk about the abundant but mysterious stuff that accounts for one quarter of the universe.
Hope for Future Discoveries Both Near and Far at the American Astronomical Society Meeting
The Real Explosions in the Sky: Supernovae Translated into Music [Video]
Astronomical Deficit Forces Downsizing of U.S. Telescope Projects
The federal fiscal crisis is pushing NASA and National Science Foundation officials to make painful choices between present and proposed astronomy programs
Turbulent Nursery: Young Stars in Nearby Nebula Already Exploding
BOSTON—Supernova explosions mark the violent end for many massive stars, but for some that end comes shortly after the beginning.
Arm's Trace: Astronomers Spot a Newfound Piece of the Milky Way Galaxy
A looping spiral arm of gas some 70,000 light-years away seems to preserve the galaxy's spiral symmetry
WiggleZ Project Confirms Dark Energy's Effects
A survey of 150,000 galaxies confirms predictions about dark energy, thought to be what's driving galaxies apart. John Matson reports