A fire retardant that has been in use for more than 40 years has been found in sediments and in the tissue of fish in some of the Great Lakes.
There were fewer deaths worldwide in 2005 due to earthquakes, but almost 90,000 casualties were reported, the U.S. Geological Survey reported.
U.S. researchers have defined a molecule that dictates how blood stem cells travel to the bone marrow and establish blood and immune cell production.
A pig used for research at the University of Illinois at Urbana-Champaign will have its DNA provide the first sequence of the swine genome.
The U.S. and Russian crew of the Expedition 12 has completed an upgrade to the International Space Station's spacewalk preparation systems.