Launched in 2007, the Aeronomy of Ice in the Mesosphere, or AIM, mission is the first detailed exploration of Earth's unique and elusive clouds that are literally on the "edge of space."

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In the arid Mojave Desert, small burrowing mammals like the cactus mouse, the kangaroo rat and the white-tailed antelope squirrel are weathering the hotter, drier conditions triggered by climate change much better than their winged counterparts, finds a new study published today in Science.

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