Editors' Choice

Astronomy: Gazing Through the Dust
Galaxies undergoing vigorous bursts of star formation are often optically concealed by dust but appear luminous at longer wavelengths because the dust absorbs the light of the stars and re-emits … [Read more]

Engineering: Wide Yet Sensitive
In a displacement force sensor, there is an inherent tradeoff between sensitivity (which requires large deflections to detect weak applied forces) and bandwidth (which requires small deflections to accommodate a … [Read more]

Signal Transduction: Single-Molecule Sensitivity
The external fertilization of sea urchin eggs relies on an extreme sensitivity of the sperm to chemoattractant molecules that guide the sperm toward the egg. In fact, Arbacia punctulata sperm … [Read more]

Ecology: Timing Is Everything
The mathematical description of coupled oscillations dates back to the 1665 analysis of pendulum clocks by Christiaan Huygens. Ecological models predict that populations of species in a community can exhibit … [Read more]

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