World Space Week 2011 Launches to Honor Human Spaceflight

sputnik soviet space race
A Soviet technician works on Sputnik 1 before the satellite's Oct. 4, 1957 launch.
(Image credit: NASA)

Fifty-four years ago today (Oct. 4), the Soviet Union launched Sputnik 1, the world's first artificial satellite, and humanity's race into space began. Now a weeklong international space celebration marks that date and highlights all the good that has come from reaching for the stars.

The 12th annual World Space Week kicks off today, with organizations around the globe holding events to acknowledge the contributions of space science and technology to life on Earth. This year's festivities will focus on the theme "50 Years of Human Spaceflight," a nod to cosmonaut Yuri Gagarin's historic orbital flight of April 12, 1961.

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Mike Wall
Space.com Senior Writer
Michael was a science writer for the Idaho National Laboratory and has been an intern at Wired.com, The Salinas Californian newspaper, and the SLAC National Accelerator Laboratory. He has also worked as a herpetologist and wildlife biologist. He has a Ph.D. in evolutionary biology from the University of Sydney, Australia, a bachelor's degree from the University of Arizona, and a graduate certificate in science writing from the University of California, Santa Cruz.