A pregnant shark was tagged and monitored for 5 months, then disappeared. Scientists now know its fate
Health Rounds: Dye turns mouse skin invisible, allows researchers to see inside
China to test lunar-soil bricks in space to pave the way for its planned moon base
Ruins of a long-sunken Greek village emerge as drought saps a vital reservoir
Boeing's beleaguered space capsule is heading back to Earth without two NASA astronauts
The moon had active volcanoes into the dinosaur age, study finds
SpaceX launches next-gen US spy satellites on 2nd leg of spaceflight doubleheader
Feeling the heat as Earth breaks yet another record for hottest summer
