NASA Rover Curiosity Approaches Mars
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NASA's sent rovers to Mars before, but none as large as Curiosity. (Idaho National Laboratory/Creative Commons)
The Curiosity rover is currently in the Martian atmosphere, according to the Wall Street Journal, and is scheduled to land on the planet's surface Sunday night at 10:31 p.m. PDT.
The rover, which is being controlled in Pasadena, only has one shot to make the landing.
The $2.5 billion Curiosity will be collecting and analyzing soil samples as scientists continue to search for signs of Mars' possible previous life existence.