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  1. 19437

    The teardrop shape of Venus away from the centermost part of the sun simply is caused by the photographic surface being planar, rather than spherical. The image can never be represented without distortion for the same reason that the globe can’t be represented without distortion on a flat map. Robert P. Kelso San Marcos, Texas […]

    By Science News
  2. Astronomy

    Heavenly Passage

    On June 8, the black dot of Venus passed across the face of the sun, the first time it did so in 122 years.

    By Ron Cowen
  3. Health & Medicine

    Medical Advice

    Looking for medical advice? Medicine On-Line is one place to go. The site covers topics ranging from vaccines to snake bites to white-coat hypertension (the tendency for a patient’s blood pressure to rise in the presence of a doctor).