U.S. medical scientists say they've identified a protein that restricts the release of the human immunodeficiency virus from human cells.

Astronomers have unearthed secrets from the grave of a star that blasted apart in a supernova explosion long ago.By decoding ghostly echoes of light traveling away from the remains of a supernova called Cassiopeia A.Cassiopeia A is one of the most explore

By measuring the speeds of distant stars, researchers estimated the mass of the Milky Way's dark matter halo (indicated in dim red), finding it to be much slimmer than previously thought.

NASA's Spitzer Space Telescope has found a bizarre ring of material around the magnetic remains of a star that blasted to smithereens.

How do mercury emissions affect pregnant mothers, the unborn and toddlers? Do the level of emissions impact autism rates?

Dell should be releasing a new, more green PC later this year, and it has a very interesting look.