29-Apr-2014 Is the universe balanced on a pinhead?
Scientists have known the mass of the heaviest fundamental particle, the top quark, since 1995. But recent, more precise measurements of this mass have revived an old question: Why is it so huge? No one is sure, but it might be a sign that our universe is inherently unstable. Or it might be a sign that some factor we don't yet understand is keeping us in balance.
1-Mar-2014 CDMS result covers new ground in search for dark matter
Scientists looking for dark matter face a serious challenge: No one knows what dark matter particles look like. So their search covers a wide range of possible traits -- different masses, different probabilities of interacting with regular matter.
Today, scientists on the Cryogenic Dark Matter Search experiment, or CDMS, announced they have shifted the border of this search down to a dark-matter particle mass and rate of interaction that has never been probed.
10-Nov-2009 An electron zap turns flimsy plastic into sturdy shrink wrap
If you buy a Butterball turkey this Thanksgiving, you have particle accelerators to thank for its freshness. For decades now the food industry has used particle accelerators to produce the sturdy, heat-shrinkable film that Butterballs come wrapped in.
16-Jul-2009 Dark Energy Camera scans ancient skies
Scientists wonder why the universe is expanding ever faster. What mysterious force is at work? By recording the light from hundreds of millions of galaxies from a mountaintop in Chile, they hope to find out what's going on.
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.