[ Vol. 28 No. 1 ]
Defying Limits

Fueled by a desire to help biologists, Eric Betzig has spent the last decade devising ways to break free from the constraints of light microscopy—work recognized with the 2014 Nobel Prize in Chemistry.

In This Issue

A trip to the Svalbard archipelago brought about a second vocation for Susan McConnell.

A group of scientists tests their mettle in an obstacle race.

An international summer program gives talented Russian high schoolers a taste of life at the bench.

Janelia’s Advanced Imaging Center gives visiting scientists access to cutting-edge microscopes.

Articles

Cells have a rapidly evolving arsenal to counter wayward DNA.

A stress hormone can flip the switch between strategic and random behavior in rats.

In some bone marrow cancers, a stem cell’s surroundings play a surprising role.

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