NASA's MAVEN spacecraft isn't wasting any time at Mars. MAVEN sent home its first images of Mars' upper atmosphere early Monday morning (Sept. 22), just eight hours after entering orbit around the Red Planet. The false-color images, which NASA released Wednesday (Sept. 24), were captured by MAVEN's Imaging Ultraviolet Spectrograph instrument when the probe was 22,680 miles (36,500 kilometers) above the surface of Mars, agency officials said. "Blue shows the ultraviolet light from the sun scattered from atomic hydrogen gas in an extended cloud that goes to thousands of kilometers above the planet’s surface," NASA officials wrote in an online description of the image.
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