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EARTH IN ACTION
Alexandra Witze ponders Earth’s odds in “When an asteroid heads for Earth, it’s time to reconsider those doomsday plans.”

MOLECULES
Nanoparticles (below, blue) detect viruses (pink) in “Synthetic nanomaterial can recognize viruses.”

HEALTH & ILLNESS
Allergic people became able to tolerate up to a full glass of milk. See “Therapy for milk allergy offers hope, and caution.”

Pregnant women taking an omega-3 fatty acid have bigger babies. Read “Fish oil component boosts newborn health.”

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