‪First Solar Powered U.S. Satellite 1958 – Project Vanguard

Lawrence Kazmerski talks about solar cells on America’s second satellite. Vanguard 1 is the oldest satellite still in orbit. Lawrence L. Kazmerski pioneered thin film solar technology in Colorado. This talk was part of the Steinmetz Lecture Series at Union College in Schenectady, New York. Video by the Edison Tech Center


  1. Richard Easton on April 8, 2021 at 11:52 pm

    Vanguard 1 had two transmitters; one used batteries and the other used the solar cells. They were transmitting on slightly different frequencies. My dad, Roger Easton, designed it.

  2. Roy Lewis on April 9, 2021 at 12:01 am

    Does anyone know if the entirety of Dr. Kazmerski’s presentation is available somewhere on Youtube?

    Here is his bio;


  3. Kesha Borja on April 9, 2021 at 12:06 am

    You can find perfect idea for that on Avasva Solutions website.

  4. billinct860 on April 9, 2021 at 12:19 am

    I read that the solar cells clouded over after years in space, nothing about Van Allen radiation killing it.

  5. Richard Easton on April 9, 2021 at 12:28 am

    I tell the story of Vanguard and GPS in my book. http://www.gpsdeclassified.com

  6. Jeremy Benson on April 9, 2021 at 12:36 am

    Awe, you cut the video. At the end when he said "It’s the oldest piece of space garbage up there." What satellite is he talking about? Just after saying Sputnik and one other came down.

  7. Rick Taylor on April 9, 2021 at 12:45 am

    sweet 58

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