Geologists could be seen collecting data from the eruption, making a helicopter trip to the caldera floor to sample lava for chemical analysis. The eruption continued for several hours into the day.

Mount Lewotobi Laki Laki, one of Indonesia’s most active volcanoes, erupted for a second straight day, sending a column of volcanic materials and ash up to 18 kilometers (11 miles) into the sky early ...

Add Yahoo as a preferred source to see more of our stories on Google. In the predawn darkness, a team of scientists climbed the slope of Mexico's Popocatépetl volcano, one of the world’s most active ...