Issues

Cosmologists believe that half of all ordinary matter in the present epoch is hidden as a web of highly ionized intergalactic gas. An x-ray analog of the Lyman α forest of redshifted ultraviolet absorption lines promises to reveal that missing matter.

Influenced by cluster size and temperature, an electron can attach to the surface or be trapped internally.

New evidence suggests that winter storms over the oceans provide the energy that sets Earth freely oscillating at its fundamental frequencies.

Spreading the construction of a detector across several institutions brings project visibility to participants.

After an annus horribilis at Los Alamos, the atmosphere at the lab is still uneasy.

In his first relativity paper, Einstein made one erroneous prediction. Although it should have been withdrawn when he generalized the theory to include gravity, the original error has received surprisingly little attention.

Ultrashort laser pulses can generate even shorter bursts of coherent soft x rays. The technology now makes it possible to manipulate atoms on attosecond time scales to create designer wavefunctions.

Biological physics courses can serve a variety of students, among them life-sciences students who need to understand the role of physical principles in the world of biology.