Following a press conference at the enormous fall meeting of the American Geophysical Union in San Francisco, an unusual sound was heard in a room of reporters: Applause. Writers and videographers representing news agencies from around the world clapped at the conclusion of a presentation by four scientists involved with the NASA mission to Mars, […]
SAN FRANCISCO — At this annual gathering of more than 20,000 Earth and space scientists, press conferences offered by the organizers feature scientists discussing everything from Mars rovers whiffing methane to Christmas lights visible from space. One press conference that has for a few years had a recurring slot at the fall meeting of the […]
A long, long time ago, a hairy elephant stomped the northland, wrecking trees and shrubs as it swallowed twigs, leaves and bark. These mastodons left a few scattered teeth and bones in Alaska and the Yukon, reminders of an immense mammal that lived as far south as Honduras. A recent look at far-north mastodons shows […]
Imagine a shallow lake north of Hughes, in the cold heart of Alaska. In frigid, sluggish water, dim blue light penetrates two feet of ice. The ice has a quarter-size hole, maintained by a stream of methane bubbles. Every few minutes, a brutish little fish swims up, sips air, and peels back to the dank. […]