Natural WondersDevil’s Marbles - Karlu Karlu Conservation Reserve: Science, History, and Cultural HeritageThe Devil’s Marbles (Karlu Karlu conservation reserve) is an area in Northern Territory, Australia, sprinkled with large reddish boulders.
Geological WondersWhat is the Richat Structure - "The Eye of the Sahara"?The Richat Structure (The Eye of the Sahara) is an eroded geologic dome in Mauritania, Africa. Its birth started over 100 million years ago.
Natural WondersThe science behind fancy-colored diamonds: why are diamonds colored?Fancy colored diamonds get their color from three main causes: impurities in the diamond crystal structure, lattice defects, and radiation.
Natural WondersWhat are diamonds and how are diamonds formed naturally?Diamonds are minerals composed of carbon that come from deep volcanic eruptions in the Earth's mantle and were formed billions of years ago.
Natural WondersColored Sand Beaches—What Gives Sand Its Color?From white sand beaches to black sand beaches, and even multicolored sand beaches - Earth has it all! Where does the sand color come from?
Natural WondersNAICA CAVE OF CRYSTALS Mexico - DEADLY GIANT Selenite Crystals CaveThe Naica Cave of Crystals, home to giant selenite crystals, is one of the most fascinating, yet potentially deadly, places on Earth.