A large sulfur dioxide gas cloud is blowing toward Keflavík International Airport. Authorities have told people nearby to ...

Some people have reported seeing so-called “ witch’s hair ” drifting in the air. These are fine, sharp, glassy needles that are formed in volcanic eruptions when lava droplets rapidly cool and stretch ...

The concept isn’t hypothetical. Tephra layers in Icelandic peat cores show that eruptions soared six-fold between 12,000 and ...