The 1815 eruption of Mount Tambora in Indonesia left a huge crater, along with a sometimes unexpected legacy. Jialiang Gao, CC BY-SA 3.0, via Wikimedia Commons On April 10, 1815, the Tambora volcano ...

In 1816, communities across the Northern Hemisphere experienced a year of unusual weather that became known as the “Year Without a Summer.” Frost appeared in June, crops failed in several regions, and ...

Nearly two hundred years ago, an event so rare occurred that even the phrase “once in a blue moon” doesn’t quite describe it. The thing is, the Sun turned blue in the sky. The effect of the blue, ...