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1:07pm, October 21, 2011
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DELETED SCENES BLOG
An orbiting camera catches dust devils whirling at high speeds on the Red Planet. Read “HiRISE clocks hurricane-speed winds on Mars.”

ATOM & COSMOS
Astronomers get a new odometer to measure faraway objects. See “Longer cosmic ruler based on black holes.”

ENVIRONMENT
A warming climate could be making elk more destructive to forests. Read “When snowpack shrinks, elk can binge on aspen.”

Some kinds of pollen can precipitate more than allergies. See “Cloud seeding by trees could alter precipitation, climate.”

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