Uncategorized

  1. Paleontology

    New fossils may capture the minutes after the dinosaur-killing asteroid impact

    North Dakota fossils may depict the aftermath of the dinosaur-killing asteroid, but controversial claims about the breadth of the find are unproven.

    By Carolyn Gramling
  2. Materials Science

    Bacteria can be coaxed into making the toughest kind of spider silk

    Lab-altered bacteria have made a copy of a spider’s strongest silk strands, which could one day be used to make more sturdy materials.

    By Jeremy Rehm
  3. Anthropology

    Foreigners may have conquered ancient Egypt without invading it

    Dental evidence suggests female Hyksos immigrants married into power.

    By Bruce Bower
  4. Genetics

    A Nobel Prize winner argues banning CRISPR babies won’t work

    Human gene editing needs responsible regulation, but a ban isn’t the way to go, says Nobel laureate David Baltimore.