News

  1. Physics

    Hot and heavy matter runs a 4 trillion degree fever

    Protons and neutrons melted in collisions of gold atoms have created the hottest matter ever made in a lab

    By Laura Sanders
  2. Space

    Powerful collider set to smash protons

    The Large Hadron Collider will operate at only half its maximum energy for the next 2 years.

    By Ron Cowen
  3. Chemistry

    Tiny molecules walk the track

    Researchers design synthetic “walking” molecules that may one day haul cargo in artificial micromachines.

    By Laura Sanders
  4. Paleontology

    Sail-backed dinos had semiaquatic lifestyle

    Isotopic analyses of fossils suggest the carnivores had crocodile-like habits.

    By Sid Perkins
  5. Earth

    Sea levels erratic during latest ice age

    Mineral crusts deposited 81,000 years ago in a Mediterranean island’s caves suggest an abrupt jump in sea level.