When you go walking on islands like São Miguel, you actually go back in time: Joao Santos I wandered through a labyrinth of black basalt, my fingertips dragging along walls laced with electric green lichen, boots crunching over rubble as dark as coal. The landscape on Pico, one of nine islands that make up the … Read more
Imagine walking through a dusty, barren landscape and coming across a seemingly ordinary rock. The rough exterior may not catch your eye, but what’s inside certainly will. Geodes are one of nature’s most spectacular treasures and offer a glimpse into the geological processes that shape our Earth. Often hidden in plain sight, these remarkable formations … Read more
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Imagine a completely barren world. Before you lies a volcanic landscape, devoid of flora and fauna. Scattered across this gray and black expanse are shallow bodies of water. Each of these natural pools creates a … Read more