Showing results by author "William F. Welsh"


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    • Scientific American

    • World with Two Suns
    • By: William F. Welsh, Laurance R. Doyle
    • Narrated by: Mark Moran
    • Length: 20 mins
    • Unabridged
    • Overall
      4.5 out of 5 stars 2
    • Performance
      4.5 out of 5 stars 2
    • Story
      4.5 out of 5 stars 2

    William F. Welsh, a professor of astronomy at San Diego State University, and Laurance R. Doyle, an astrophysicist at the SETI Institute in Mountain View, California, write about how astronomers are discovering distant planets that orbit two-star systems, uncovering bizarre and wondrous worlds unlike anything in our solar system.

    Regular price: $1.95