Eileen Collins reflects on her time as the first female not only to pilot but also command a spacecraft. Here's her experience during NASA's shuttle days.

The Star City Closed Administrative Territorial Unit is barely an hour's drive northeast of the Kremlin, but for decades the town never appeared on any maps. Only after the Soviet Union fell apart was ...

The 10 astronaut candidates, six of them women, will begin two years of training before becoming eligible for missions to low-Earth orbit and perhaps one day to the moon and Mars.

Solar storms —giant bursts of energy from the Sun that disturb the Earth’s magnetic field—may play a role in triggering heart ...