AOL

Scientists start to solve mystery of what’s inside Mexico’s ‘majestic’ giant volcano

In the predawn darkness, a dedicated team of scientists has scaled Mexico's Popocatépetl volcano, one of the world’s most active and a potential threat to millions, to unravel the mysteries beneath ...
来自MSN

Scientists start to solve mystery inside Mexico’s giant volcano

In the predawn darkness, a dedicated team of scientists has scaled Mexico's Popocatépetl volcano, one of the world’s most active and a potential threat to millions, to unravel the mysteries beneath ...