Feature
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EcosystemsEmpty Nets
New research has begun challenging long-held assumptions about the consequences for fish stocks of harvesting the biggest fish first.
By Janet Raloff -
Health & MedicineUs against Them
New antibiotics may be valuable weapons in the fight against tougher bacteria.
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Planetary ScienceRoving on the Red Planet
Scientists review the discoveries made by the Mars rovers after nearly 18 months on the Red Planet.
By Ron Cowen -
PhysicsMolecular Anatomy Revealed
Using ever-faster lasers to zap the electron clouds in atoms and molecules, scientists are making major strides toward observing and controlling the elementary quantum transformations that underlie all of chemistry.