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A member of the Indian security force keeps watch over a launch vehicle carrying the Mars Orbiter probe at the Indian Space Research Organization facility, in Sriharikota, in 2013. AFP/Getty Images hide caption

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AFP/Getty Images

India Zooms To Mars Much More Cheaply, But With Trade-Offs

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In this artist concept provided by NASA, the MAVEN spacecraft approaches Mars on a mission to study its upper atmosphere. AP hide caption

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AP

Mission To Study Mars' Climate Enters Red Planet's Orbit

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The new capsules are being built by Boeing and SpaceX. They look similar, but there are differences. SpaceX, The Boeing Company hide caption

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SpaceX, The Boeing Company

How NASA's New Spaceships Stack Up

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In an image provided by NASA, astronaut Randy Bresnik prepares to enter Boeing's CST-100 spacecraft for an evaluation at the company's Houston Product Support Center. NASA awarded Boeing with a $4.2 billion contract Tuesday. AP hide caption

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AP

An artist's view of BoldlyGo's SCIM mission in which a probe would skim the Martian atmosphere capturing dust particles and returning them to Earth. BoldlyGo Institute, Inc. hide caption

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BoldlyGo Institute, Inc.

During the Apollo 12 mission, astronaut Alan Bean holds a container of lunar soil. The astronaut Charles "Pete" Conrad, who took the photograph, is reflected in Bean's faceshield. Bean says he used to think that in his lifetime, we'd build a base on the moon and start preparing to travel to Mars. Hulton Archive/Getty Images hide caption

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Hulton Archive/Getty Images

Astronaut Who Walked On The Moon: 'It Was Science Fiction To Us'

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