Rob Pettengill News Today

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 an...

Chaco Canyon aka Chaco Culture National Historical Park, New Mexico, contains astronomical rock art that documents what the people of