PIX4629503: Copernician System - Copernician System - Heliocentric model according to Nicolas Copernic. Engraving from “Harmonia Macrocosmica” by Andreas Cellarius, 1660-1661. The Heliocentric model according to Copernicus. Plate of the Harmonia Macrocosmica of Andreas Cellarius, 1660-1661 / Bridgeman Images
PIX4662621: Troodon - A Troodon formosus pursues a small mammal, an eodelphis. Trooedon is a genus in the family Troodontidae. It was a small dinosaur from the late Cretace (75 to 65 million years). A Troodon formosus pursues an Eodelphis mammal. Troodon is a genus of relatively small, bird-like dinosaur from the Late Cretaceous period (75-65 million years) / Bridgeman Images
PIX4673697: Grand Prismatic Spring - Yellowstone - 2017 - The Grand Prismatic Spring is a large heated water pool with over 70* C located in Yellowstone National Park, USA. It is the largest known American hot spring. August 2017. Visitors walk the boardwalk around the Grand Prismatic Spring in Yellowstone National Park / Bridgeman Images