Rob Pettengill | EarthSky
Rob Pettengill, Ph.D., is an engineer, astrophotographer, sidewalk astronomer, and volunteer astronomy educator from Austin, Texas. As a NASA JPL Solar System Ambassador, he gives astronomy and astrophotography talks to schools and clubs. His BadAstroPhotos.com website images and how-to content are free for non-commercial reuse to readers in 168 countries. In social media, his outreach is on Flickr, Facebook, Instagram, Cloudy Nights, and Quora, where he’s a “most read” astrophotography and amateur astronomy author. Rob earned his Ph.D. at Stanford for research in medical microelectronic...
Source: earthsky.org
