Some scientific questions are hard because the subject is inaccessible. Others are hard because the subject is so familiar that everyone assumes it must already be settled. The zebra falls…
Source: Wikipedia
Some scientific mysteries involve exotic, hard-to-reach subjects: distant stars, deep ocean trenches, particles too small to see. The mystery of the eel is not like that. Eels are ordinary.…
Source: Wikimedia Commons
There are a handful of places on Earth so visually striking that a single photograph of them is instantly recognizable, and the Great Blue Hole is one of…
Source: Wikipedia
Look at a map of the Mediterranean Sea today, and you see a vast, deep body of water, ringed by the coastlines of Europe, Africa, and the Middle East,…
Source: Wikipedia
Imagine walking through a forest of aspen trees, tens of thousands of slender white trunks rising all around you, their leaves shimmering and trembling in the breeze. It looks…
Source: Wikipedia
Deep in the dense green heart of the Peruvian Amazon, far from any road, there is a river that steams. Along parts of its course, the water is not…