U.S. scientists have successfully grown large numbers of stem cells from adult pigs' heart tissue and used the cells to repair heart attack damage.
U.S. and Brazilian scientists say a gene linked with Alzheimer's disease may protect children from development problems of early childhood diarrhea.
The U.S. journal Molecular and Cellular Proteomics has made an article published by Nobel Laureate Andrew Fire available free to the public.
There's a new fad starting, which might eventually prove to be more a revolution than a fad: an efficient furnace that also generates electricity.
U.S. scientists say they have developed a method of controllably altering the diameter of individual carbon nanotubes.
U.S. researchers say they have found a way to kill harmful bacteria in milk while increasing its shelf life without introducing off-flavors.
Experts have questioned whether Internet addiction constitutes a psychological disorder and an Arlington, Va., group may add it to its diagnostic manual.
U.S. scientists say they have developed a new technology for cleaning oil spills on oceans, lakes and other waterways.
The underground chamber in Florence, Italy, where Leonardo da Vinci dissected human corpses and animals has been opened briefly for scientific exploration.
NASA said the International Space Station crew was busy Tuesday with spacewalk preps, including spacesuit sizing and servicing.