Alan Boss: Finding Exoplanets

    • Exoplanets transit their star in this artist's impression.
      In the past decade, more than 130 extrasolar planets have been discovered. Almost all have been found using a technique that measures tiny changes in a star's radial velocity, the speed of its motion relative to Earth. Astronomer Alan Boss tells the story how the
    • newplanet_art
      The existence of extrasolar planets has become common knowledge in the past decade. But in the mid-20th Century, the search for worlds orbiting other stars got off to a rocky start. Alan Boss, an astronomer with the Carnegie Institution of Washington, recounts the early