Picture the two places side by side. On one side of the Atlantic, the Sahara: the largest hot desert on the planet, stretching across the northern third of Africa, defined…
Look at Earth from orbit today and you see the famous blue marble: oceans, cloud swirls, green continents. Run the clock back roughly 700 million years and an observer in…
Source: Wikipedia
On a remote, windswept stretch of Arctic tundra in the far north of Russia, near the border with Norway, there sits a rusted metal cap bolted over a hole…