illustration of SPIDER scope

BIG DREAMS FOR SMALL SCOPE  Lockheed Martin imagines a relatively small and light advanced SPIDER telescope with thousands of tiny lenses on one face of a surveillance orbiter.

air bubbles in a rock

NOT-SO-FRESH AIR  Ancient air embedded inside rock salt for 815 million years suggests that oxygen was already abundant when the first animals appeared. The microscopic air bubbles were trapped inside rectangular inclusions (one circled in red) in the rock.

nursery web spiders

A GIFT FOR YOU  Male nursery web spiders (left) present nuptial gifts in the form of insect carcasses wrapped in silk

Alzheimer’s plaques in human brain

PLAQUE FIGHTER  A long dose of antibiotics reduced Alzheimer’s-related plaques (shown here in a human brain) in the brains of mice, results that suggest gut bacteria can influence the disease. 



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