Issues

A 10-billion-year-old stellar explosion, serendipitously recorded by the Hubble Space Telescope’s infrared camera, seems to show the cosmic expansion slowing down before it eventually sped up.

An expanded data set for ocean temperatures has enabled climate modelers to compare predicted heating of the ocean to what has been observed over the past 40 years.

Barn owls use the neural equivalent of an AND gate to combine time-difference and intensity cues.

With the concept of a “balanced portfolio” for federal science funding gone from the Bush budget, Capitol Hill supporters of the physical sciences will spend the summer engaged in what looks to be a difficult search for more money.

Seismologists have never directly observed rupture in Earth’s interior. Instead, they glean information from seismic waves, geodetic measurements, and numerical experiments.

Devices for handling nanoliter quantities of fluids are creating new fabrication challenges and finding new applications in biology, chemistry, and materials science.

During the height of the cold war, how did prominent Western and Soviet scientists end up in Canada discussing nuclear weapons?