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Y2K: So Many Bugs... So Little Time

Fixing Y2K seems simple: change all two-digit years to four digits. But that tedious-- and unexpectedly difficult -- process takes more time than is left

By Peter de Jager

Surveying Space-time with Supernovae

Exploding stars seen across immense distances show that the cosmic expansion may be accelerating--a sign that the universe may be driven apart by an exotic new form of energy

By Craig J. Hogan, Nicholas B. Suntzeff and Robert P. Kirshner

Inflation in a Low-Density Universe

Evidence has gradually accumulated that the universe has less matter, and therefore is expanding faster, than the theory of inflation traditionally predicts. But a more sophisticated version of the theory readily explains the observations

By David N. Spergel and Martin A. Bucher

Cosmological Antigravity

The long-derided cosmological constant--a contrivance of Albert Einstein's that represents a bizarre form of energy inherent in space itself--is one of two contenders for explaining changes in the expansion rate of the universe

By Lawrence M. Krauss

DNA Microsatellites: Agents of Evolution?

Repetitive DNA sequences play a surprising role in how bacteria-- and perhaps higher organisms-- adapt to their environments. On the downside, they have also been linked to human disease

By Christopher Wills and E. Richard Moxon

The 1998 Nobel Prizes in Science

Here follow explanations of the mechanisms and processes that underliethe world's top awards for physics, chemistry and physiology -- and anexcerpt from a Scientific American article by the economics laureate

Disarming Flu Viruses

Coming soon: new medicines designed to treat the flu by halting viral replication in human tissues The drugs may also serve as a novel kind of preventive

By Norbert Bischofberger, Robert G. Webster and W. Graeme Laver

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