Issue 42 / February 18, 2016

  1. Editor’s Note

    Issue 42: A surprise DNA test, an unexpected power plant, and a breakthrough chirp. /

  2. Around the World in 46 Chromosomes

    I expected to discover myself in my DNA test. But I found us all. /

  3. Why Solar Power Might Get a Lot More Green

    It turns out that Popeye was right all along. /

  4. Music of the Spheres

    When scientists detected gravitational waves, “astronomy grew ears.” /

  5. Little Blessing for My Floater

    “This tiny ruin in my eye” /

  6. Wonder on the Web

    Issue 42: Links to amazing stuff.