What Were They Thinking?

  1. Archaeology

    Ancient Egyptian pot burials were not just for the poor

    In ancient Egypt, using pots for burial containers was a symbolic choice, not a last resort, archaeologists say.

  2. Oceans

    Underwater city was built by microbes, not people

    Submerged stoneworklike formations near the Greek island of Zakynthos were built by methane-munching microbes, not ancient Greeks.

  3. Climate

    How to melt an ice cave

    Frigid winter air keeps gives ice caves their perpetual chill, researchers find, warning that airtight seals on some ice caves could cause the frigid formations to melt within decades.