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  • 14 Apr 2000

    Sometimes all a detective needs to crack a case is a stroke of good luck--like finding a fingerprint in the right place. Research is no different.

  • 7 Apr 2000

    Although the sun seems perfectly smooth from Earth, its surface is roiled by huge eruptions. A few times each day these eruptions spew out charged particles as coronal mass ejections (CME); these can disrupt radio communications when they hit Earth's magnetic field.

  • 28 Mar 2000

    The older a galaxy, the heavier the black hole at its center, according to a study slated for publication in the 1 April Monthly Notices of the Royal Astronomical Society.

  • 20 Mar 2000

    Every so often, the stream of particles coming from the sun knocks out a satellite or disrupts power grids on Earth. But that's nothing compared to the collisions in interstellar space, where the solar wind bangs into a huge particle cloud.

  • 3 Mar 2000

    If you want to catch light, you need a mighty small cage. One option is carefully constructed material with segments almost as small as a wavelength of light. Even though most light scatters when it hits layers of so-called photonic material, certain wavelengths get trapped inside.

  • 18 Feb 2000

    The Hubble Space Telescope has taken a close-up look at a strange event in the aftermath of a supernova: the sudden brightening of a huge gas ring that circles the exploding star. Astronomers think the ring is flaring up as it is smashed by debris from the immense explosion.

  • 8 Feb 2000

    Walk into a parking garage or a bar and you'll probably inhale a ubiquitous pollutant called polycyclic aromatic hydrocarbons, or PAHs. Made up of two or more fused benzene rings, they turn up in cigarette smoke, car exhaust, or just about anywhere hydrocarbons burn.

  • 10 Dec 1999

    To the relief and delight of engineers and x-ray astronomers, Europe's new space workhorse, the Ariane 5, today deposited a $640 million x-ray observatory into orbit.

  • 29 Nov 1999

    Spotted 150 years ago on the waters of a canal and today routinely generated in light-carrying fibers, the solitary, long-lasting waves called solitons have now been seen in yet another medium: sound.

  • 12 Oct 1999

    The 1999 Nobel Prize for Physics has been awarded to two Dutch physicists who refined a major part of the mathematical framework of modern particle physics.

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