Taftan volcano near the border of Pakistan has shown signs of unrest in recent years. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A volcano ...

Popocatépetl Volcano, Mexico — In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world’s most active and whose eruption could affect millions ...