April 22, 2000 | Science News



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  • News

    The planet that isn't

    An astronomer has formally retracted her claim that she and her colleagues had likely taken the first image of a planet outside the solar system.
    15 years ago
  • News

    Observatory on a suicide mission

    Fearing that its 9-year-old workhorse, the Compton Gamma Ray Observatory, could plunge uncontrollably through the atmosphere if one more of its gyroscopes fails, NASA has decided to crash the spacecraft into the Pacific Ocean in early June.
  • News

    High estrogen linked to lung cancer

    Estrogen receptors proliferating on tumor cells in women's lungs may account for why women seem more easily affected by the carcinogenic effects of tobacco smoke.
  • News

    Breast cancer options made clearer

    An inexpensive test for two proteins in the blood can indicate whether women with breast cancer that hasn't yet spread to lymph nodes are likely to face such a relapse after surgery.
  • News

    Impurities clock crystal growth rates

    A novel method for measuring tiny amounts of hydrogen-containing impurities allows researchers to determine growth rates along different directions in a quartz crystal.