Uncategorized

  1. Astronomy

    Solar System Small Fry: Stellar blinks reveal tiny bodies near Pluto

    By measuring tiny dips in the intensity of X rays from a distant star, astronomers say they have detected more than 50 of the tiniest chunks of ice ever found in the outer solar system.

    By
  2. Paleontology

    New View: Method looks inside embryo fossils

    Using an X-ray–scanning technique, scientists have taken a high-resolution peek inside fossilized embryos of some early multicellular organisms.

    By
  3. Earth

    Macho Moms: Perchlorate pollutant masculinizes fish

    Perchlorate, a compound best known as a component of rocket fuel, can disrupt sexual development in fish.

    By
  4. 19719

    To argue that the concentrations reported in this study are environmentally relevant is misleading.