When NASA's Terra satellite passed over Alaska's erupting Bogoslof Volcano the MODIS instrument aboard captured an image of a large ash plume surrounded by clouds making it appear to be wrapped in white.
A remote volcano in Alaska's Aleutian Islands has erupted 10 times in less than a month, and experts say more eruptions are possible.
An active Alaska volcano has erupted again, this time sending a cloud of ash and ice 35,000 feet in the air.
Costa Rica declared a state of emergency Thursday after eruptions of ash from a volcano forced international flights to be postponed and threatened the capital, authorities said.
Ash trees which can resist the killer dieback fungus may be more vulnerable to attacks by insects, according to new research.
Scientists say an ash cloud from a remote Alaska volcano that might have gone more than 6 miles into the atmosphere has dissipated after it was tracked north over the Bering Sea.
Holidaymakers concerned about fresh volcanic eruptions causing flight-disrupting ash clouds might be reassured by a study setting out the first reliable estimates of their frequency.
Researchers at the University of York have identified genetic markers for disease tolerance that suggest UK ash trees may have a fighting chance against a fungal infection, which has the potential to wipe out 90% of the European ...
He stood a majestic 5-foot-5, weighed around 100 pounds and maybe had a harem. That's what scientists figure from the footprints he left behind some 3.7 million year ago.
In a towering forest of centuries-old eastern hemlocks, it's easy to miss one of the tree's nemeses. No larger than a speck of pepper, the Hemlock woolly adelgid spends its life on the underside of needles sucking sap, eventually ...