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  1. 19197

    The article notes that X-ray radiation from XTE J1550-54 jets is puzzling because the radiation of the nearer jet, which is moving toward Earth, isn’t as bright as that of the more distant jet. Perhaps as a jet strikes material, the radiation is dispersed back toward the jet source. Thus, the more distant jet could […]

    By Science News
  2. Astronomy

    Jet Astronomy

    For the first time, scientists have traced the slowing and dimming of X-ray-emitting jets from a black hole.

    By Ron Cowen
  3. Health & Medicine

    Old Drug, New Uses?

    A hormone called erythropoietin, long used to treat anemia, also seems to protect against nerve damage and holds promise as a new therapy for stroke and spinal cord injury.