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Health & Medicine

Heavy traffic may trigger heart attacks

Exposure to traffic can dramatically increase a person's risk of having a heart attack soon afterward.

Planetary Science

Riddles on Titan

Two puzzles have emerged from the Cassini spacecraft's first close flyby of Saturn's largest moon, Titan.

Physics

Particle hunt off, collider comes down

Despite tantalizing, last-minute hints of a long-sought, mass-giving particle called the Higgs boson, dismantling of the Large Electron-Positron collider has begun.

Physics

Hot little levers write beaucoup bits

Arrays of microscopic tips may offer a way to pack digital data more tightly and transfer it more quickly than is possible with magnetic hard disks.