Yuri Milner, who backed Facebook and Twitter, says his search for extraterrestrial life is in "listening mode."
A Hasselblad camera and Zeiss lens that captured extraordinary images of Earth back in 1962 await bidding by space fans.
An auction on September 13 will see the sale of 104 pieces of memorabilia from the Soviet space program, including a cognac bottle signed by Yuri Gagarin.
The anniversaries of the first manned flight in space by Yuri Gagarin and the start of the space shuttle this week come as commercial space travel takes off.
No self-respecting entrepreneur of the future uses cash, checks, or barter -- especially when buying tickets to outer space.
On April 12, 1961, the Soviet cosmonaut became the first human to go into space. It took the Americans another year to put a man into orbit. Fifty years later, Gagarin's fame is as bright as ever, and he may be one of the few Soviets to retain his star power.
On April 12, 1961, an unknown Soviet flight major became the first man into space. The rest is history.
On golden anniversary of Yuri Gagarin's trail-blazing flight, space station crew joins space leaders, cosmonauts, and astronauts to remember birth of manned space flight.
Today's Google doodle -- the company logo on Google's home page -- and a new documentary commemorate the 50th anniversary of Yuri Gagarin becoming the first man in space.
A Russian Soyuz spacecraft carrying a crew of three rocketed into orbit today, kicking off a two-day rendezvous with the International Space Station. The mission will boost the lab's crew back to six.