NASA's Cassini Spacecraft Finds Ingredient of Household Plastic in Space
NASA's Cassini spacecraft has detected propylene, a chemical used to make food-storage containers, car bumpers and other consumer products, on Saturn's moon Titan.
Finding Blood Clots Before They Wreak Havoc
CAMBRIDGE, Mass.-Life-threatening blood clots can form in anyone who sits on a plane for a long time, is confined to bed while recovering from surgery, or takes certain medications.
Water and Lava, but — Curiously — No Explosion
BUFFALO, N.Y. — Rocky pillars dotting Iceland’s Skaelingar valley were projectiles tossed into the fields by warring trolls.
Dawn Reality-Checks Telescope Studies of Asteroids
Tantalized by images from NASA's Hubble Space Telescope and ground-based data, scientists thought the giant asteroid Vesta deserved a closer look. They got a chance to do that in 2011 and 2012, when NASA's Dawn spacecraft orbited the giant asteroid, and they were able to check earlier conclusions.