Today in History: Svetlana Savitskaya became the first woman to walk in space
On July 25, 1984, Salyut 7 cosmonaut Svetlana Savitskaya became the first woman to perform a space walk.
Scientists to look at Big Bang
A super-strong telescope, to be constructed nearly half a mile below the earth's surface and more than a mile in length, may be able to look into the distant past - to see the Big Bang.
