Aleutian Islands in Alaska witnessed volcanic eruption, spewing ashes 20,000 feet into the air.
The Wold Volcano on the islands archipelago erupted after three decades on Monday.
For the first time in 30 years, the floor of Halema'uma'u crater saw lava flowing. Overnight, the volcano's volatile lava lake spilled over the rim of deep vent with within Halema'uma'u crater several times.
It is possible the ash came from volcanoes in Russia or near Mexico.
A new method developed by researchers uses x-rays to decipher content from carbonized scrolls which are too brittle to unfurl.
A new study has shown that volcanic activity may have helped warming rates level off over the last 15 years.
