https://www.edutopia.org/profile/science-bob-pflugfelder
"Science Bob" Pflugfelder | Edutopia
science bobpflugfelderedutopia
https://www.planetary.org/space-images/bob-pflugfelder-portrait
Bob Pflugfelder portrait | The Planetary Society
Bob Pflugfelder, also known as Science Bob, is a science enthusiast, speaker, and maker.
bob pflugfelderportraitplanetarysociety