Federal judge in Calif.: FDA must set new deadline to put delayed food safety reforms in place
Weather again delays test launch of private rocket designed to deliver space station supplies
Russian becomes world's oldest spacewalker at 59, loses hold of science tray, now space junk
Washington state science teacher wins national Teacher of the Year honor
Dinosaurs exhibit produced by Toronto museum to make US premiere in Cincinnati museum
Company contracted to deliver space station supplies launches unmanned test rocket in Va.
The moon may interfere with the Lyrid meteor shower, a celestial display known as "old faithful" that happens every spring.
Alexandria celebrates Earth Day with a fashion show, water exhibits and beautiful weather.
High winds force company to scrub launch of unmanned test rocket from Virginia
Cancer researchers from Pa., Ill., Ore. awarded $500K in one of richest prizes in medicine
Scientists: Earthquake sensors detected energy of Superstorm Sandy that hit East Coast
Perfect planets for life? Telescope sees distant worlds not too hot, not too cold, not too big
Fish story: DNA code of 'living fossil' promises insight into how fish began to move onto land
Private firm contracted to deliver space station supplies scrubs Wednesday test rocket launch
News guide: Key facts about the fertilizer plant explosion in West, Texas
After child's death in Newtown, scientist parents back brain research for clues to violence
Wednesday's test rocket launch was scrubbed by the private firm contracted to supply the space station.
Hawaii land board approves plan to build world's largest telescope atop Mauna Kea summit
NASA has given the OK for a private company to proceed with a test launch of a rocket that will eventually help carry cargo to the International Space Station.
Polio vaccine developer Hilary Koprowski, whose success predated Salk, dies in Pa. at 96