Space.comTopic:
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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The Caltech Space Challenge runs all week.
Astronauts in space are sending their LEGO toys back home.
Get to know the California-based private spaceflight company SpaceX.
See photos from SpaceX's second unmanned cargo flight to the International Space Station in March 2013.
Buzz Aldrin disputes claims in media reports that he is selling Apollo 11 artifacts in a Bonhams auction on Monday (March 25).
What was your favorite space news story of the last week?
Private companies and nonprofit organizations are planning deep space missions to the moon, asteroids and even Mars.
The engines will be cleaned up and put on public display.
The Merlin 1D has achieved flight qualification status, the company announced Wednesday.
Jeff Bezos' yearlong quest has been a success.
Amazon founder Jeff Bezos plans to raise sunken Apollo 11 moon rocket engines from the ocean floor. Learn more about the Saturn V rocket's F-1 engines in this SPACE.com infographic.
The Department of Energy has made its first plutonium-238 in a quarter century.
What was your favorite space news story of the last week?
Canadian astronaut Chris Hadfield is decked out in green on the International Space Station.
An international crew landed safely on the steppes of Kazakhstan in Central Asia.
After a one-day delay, three astronauts from the International Space Station are heading back to Earth.
See photos of the current mission to the International Space Station, Expedition 34.
See photos of the Soyuz capsule landing bringing Expedition 34 astronauts back to Earth.
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