North 'plaza' in Cahokia was likely inundated year-round

Pluto reached opposition (when it appears biggest and brightest for the year) last night. And with a New Moon approaching on July 28, this week is a fantastic time to target the dwarf planet.

Neil Armstrong became the first person to walk on the Moon during Apollo 11 exactly 53 years ago today. A year later, Armstrong was still required to give an oral thesis defense for his master’s in aeronautical engineering at USC. He passed.

30-Million-Year-Old Flower and Parasitic Wasp Found Encased in Dominican Amber