New process could replace centrifuges but renew threat of nuclear proliferation.
Column: Overfishing, a potential mollusk invasion, and the rise of slime threaten ocean ecology.
Without Russia, NASA couldn’t send astronauts to the space station between 2010 and 2015.
Set for launch in 2010, a Canadian satellite will look for near-Earth asteroids that could pose a threat to the planet.
Scientists look for technologies to push particles faster, better, and cheaper.
Perchlorate exists, too, in soils on Earth. Its presence probably has little bearing on prospects for life on Mars, scientists say.
Soot, derived from many sources, needs to be looked at more closely by atmospheric researchers.
Thin, bendable, organic screens of sci-fi movies are almost here.
Scientists listen to one deep sea swimmer, seeking new insights on the evolution of communication.
NASA plans to visit the sun with a heat-resistant spacecraft designed to gather information on solar wind and magnetism.
Two tests use cosmic laboratories to question if the laws of physics are universal.