<p>Orbiting instruments spotted glass (green) in the Alga Crater on Mars's southern hemisphere. The glass formed in the extreme heat of a violent impact, and researchers hope to one day search for evidence of ancient life within.</p>

Looking for Glass

Orbiting instruments spotted glass (green) in the Alga Crater on Mars's southern hemisphere. The glass formed in the extreme heat of a violent impact, and researchers hope to one day search for evidence of ancient life within.

Photograph by NASA/JPL-Caltech/JHUAPL/Univ. of Arizona

Week's Best Space Pictures: Glass Found on Mars

In this week's news from space, Saturn's moon is missing chunks and a test flight goes up in smoke.

Feed your need for "heavenly" views of the universe every Friday with our picks of the most awe-inspiring space pictures. This week, the Canary Islands stir up trouble in the clouds and researchers spy some glass on Mars.

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