![Curiosity Took an Earth Rock to Mars [Mars]](https://img.ksl.com/slc/2501/250179/25017969.jpg?filter=kslv2/responsive_top_sm)
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In the 60s and 70s, America spent $109 billion on getting rocks from the Moon back to Earth*. In 2012, America spent a couple billions on moving an Earth's rock to Mars**. Moving rocks is a lot of fun!More Read More ...
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