Field Notes

Field Notes: Can We Beat Bacteria by Hacking Their Conversations?

12.21.2010 Bacterial armies emit molecular war cries to stir others of their kind to action. Learning how these microbes gird for battle could help us find better ways to fight back.

by Dava Sobel

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The Kilogram Isn't What It Used to Be—It's Lighter

Within a high-security, climate-controlled vault in France, the perfect kilogram is getting ever so slightly less massive—and no one knows why. 03.08.2009

Super Trees Clean up Superfund Sites

One remarkable forest is busy purifying the planet. 12.26.2008

Searching Heaven and Earth for the Real Johannes Kepler

Galileo may be science's most famous martyr, but it was Kepler who solved the mystery of the planets. 10.05.2008