Fifty Years of Human Spaceflight

Human spaceflight has come a long way over the last 50 years since the launch of cosmonaut Yuri Gagarin on April 12, 1961 during the Vostok 1 mission. SPACE.com looks at just how far spaceflight has come and what's on the horizon.
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Kelly Astronaut Twins Meet on Eve of 1-Year Mission Launch (Photo)
Scott Kelly, left, and his identical twin brother Mark pose for a photo at the Cosmonaut Hotel in Baikonur, Kazakhstan on on March 26, 2015, one day before Scott was scheduled to launch on a one-year mission to the International Space Station.
March 27th, 2015
NASA's Kelly astronaut twins met up for a photo Thursday (March 26), just a day before one of them was scheduled to launch toward the International Space Station on an epic and unprecedented yearlong mission.
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One-Year Crew Begins Epic Trip on International Space Station
NASA astronaut Scott Kelly (bottom left) and Russian cosmonauts Gennady Padalka (bottom center)  and Mikhail Kornienko (bottom right) are seen on the International Space Station after arriving at the outpost on March 27, 2015. Kelly and Kornienko are begi
March 27th, 2015
Three new crewmembers just arrived at the International Space Station, and two of them won't be leaving for about one year.
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Cosmic Traditions: One-Year Space Crew Marks Flight with Russian Spaceflight Customs
Signing the Star City Guest Book
March 27th, 2015
Preparing to go to space for a year is no walk in the park. But with two years of training behind them, NASA astronaut Scott Kelly and cosmonaut Mikhail Kornienko did, in fact, visit a park.
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One-Year Space Station Mission Launches Today: Watch It Live
Russia's Soyuz rocket
March 27th, 2015
A three-person crew will blast off to the International Space Station today (March 27), and two of them won't be coming back to Earth for a full year. You can watch live online as the yearlong mission begins.
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Liftoff! US, Russia Launch Historic One-Year Space Mission
One-Year Mission Crew Launch
March 27th, 2015
An American astronaut and Russian cosmonaut launched into space Friday to attempt something their two countries have never done together before: a one-year mission on the International Space Station that could help one day send humans to Mars.
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The Yearlong Space Station Mission: Full Coverage
One-Year Mission Portrait
March 27th, 2015
NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko are scheduled to begin their unprecedented one-year mission to the International Space Station on Friday (March 27).
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One Year in Space: A History of Ultra-Long Missions Off Planet Earth
Polyakov on Mir During Record-Setting Mission
March 26th, 2015
An American astronaut and Russian cosmonaut are set to make history as the first crewmembers to spend a year onboard the International Space Station, but the two are not the first to log 12 months off the planet.
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