Astronaut photograph taken by the STS-111 Space Shuttle crew of the Salton Sea, with the desert valleys—Imperial, Coachella and Mexicali—labeled. Credit: NASA Earth Observatory.

Astronaut photograph taken by the STS-111 Space Shuttle crew of the Salton Sea, with the desert valleys—Imperial, Coachella and Mexicali—labeled. Credit: NASA Earth Observatory.

Astronaut photograph taken by the STS-111 Space Shuttle crew of the Salton Sea, with the desert valleys—Imperial, Coachella and Mexicali—labeled. Credit: NASA Earth Observatory.

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