Uncategorized

  1. Life

    These are the 5 costliest invasive species, causing billions in damages

    Invasive species have cost the global economy at least $1 trillion since 1970 and $162.7 billion in 2017 alone. The annual cost is increasing.

    By Jonathan Lambert
  2. Archaeology

    Stone Age culture bloomed inland, not just along Africa’s coasts

    Homo sapiens living more than 600 kilometers from the coast around 105,000 years ago collected crystals that may have had ritual meaning.

    By Bruce Bower
  3. Cosmology

    Physicists’ devotion to symmetry has led them astray before

    If dark matter WIMPs are mythical, they join the ancient idea that the planets moved in circles.

    By Tom Siegfried
  4. Animals

    Weather radar shows 30 metric tons of grasshoppers swarmed Las Vegas one night

    Everything’s glitzier in Las Vegas.