Nature

A category exploring the wonders of the natural world, covering environmental topics, wildlife, ecosystems, and the importance of preserving our planet.

20 Most Endangered Rivers in the World

Rivers sustain civilizations, but we're killing them. From the Yangtze to the Ganges, the world's most endangered rivers face pollution, damming, over-extraction, and climate change. I've documented 20 rivers on…

Introduction to the Universe

The universe is staggeringly vast. Stars account for 98% of matter in a galaxy, and there are trillions of them out there. This introduction covers star types, stellar evolution, galaxies,…

grayscale photo of explosion on the beach

Radioactive Pollution

Not all pollution glows in the dark, but radioactive pollution is uniquely dangerous. It contaminates land, water, and air with unstable atoms that emit harmful radiation for decades or centuries.…