Issues

Recently, a Munich atom laser ran continuously for 100 ms until it ran out of condensate. And a NIST atom laser shot out atoms with a chosen velocity.

Measurements of isotopic ratios link plutonium measured in sampling wells at the Nevada Test Site to a particular underground weapons test site 1.3 km away.

Recent experiments suggest that electron beams could be used to pattern semiconductor chips.

Will a single nucleus turn out to be just what its discoverers think it is—a relatively long‐lived isotope of element 114 lying in or near a region of very stable heavy nuclei?

Western physicists have learned that researchers in the post‐cold war East need direct support of research projects that promote healthy East‐West collaborations, in place of bureaucratically diffused ‘top‐down’ funding.

New tools such as nonlinear resonant ultrasound spectroscopy are being used to reveal the complex behavior of rocks and other materials.

In this unorthodox assault on mainstream cosmology, three venerable stalwarts argue for a quasi‐steady‐state universe, with some quasars quite nearby and no Big Bang.

Expanding surveys of galaxy redshifts and fluctuations in the microwave background continue to rein in the cosmologist's freedom to invent.