Science News / A SPECK OF MARS

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In This Issue

Sequencing the dead to save the living: Reviving ancient genomes of long-extinct creatures offers a window into past extinctions—and may help prevent future die outs
No gene is an island: Even as biologists catalog the discrete parts of life forms, an emerging picture reveals that life’s functions arise from interconnectedness
The decider: Informing the debate over the reality of ‘free will’ requires learning something about the lateral habenula
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A SPECK OF MARS

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On June 3, the ninth day since NASA’s Phoenix Mars Lander arrived at the Red Planet, the craft’s optical microscope took this composite image, the highest resolution picture of dust and sand ever acquired on Mars. The dust, kicked up by the landing, sits on circular pieces of silicone that are 3 millimeters in diameter. The silicone provides a sticky surface for holding the sand-grain-sized particles examined by the microscope.

Credit: NASA/JPL-Caltech/University of Arizona

Found in: Atom & Cosmos

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