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14 August 2013
Around the world in four days: NASA tracks Chelyabinsk meteor plume
Atmospheric physicist Nick Gorkavyi missed witnessing an event of the century last winter when a meteor exploded over his hometown of Chelyabinsk, Russia. From Greenbelt, Md., however, NASA’s Gorkavyi and colleagues witnessed a never-before-seen view of the atmospheric aftermath of the explosion.
13 May 2013
AGU Video: Prospects dim for ice-free Arctic Ocean helping slow global warming
The surface waters of a major portion of the Arctic Ocean are becoming saturated with carbon dioxide sooner than many scientists expected, all but halting the watery region’s ability to sop up more of the greenhouse gas from Earth’s atmosphere, new research finds.
14 March 2013
AGU Video: Lightning strike jumps the rails
The famous “kite with key” experiment Ben Franklin conducted in 1752 is more than just a legend for lightning researchers around the world—it’s a procedure. Sure, the kite has been replaced by a rocket, and the string-with-key contraption by a spool of wire, but the intent is still the same—to better understand nature’s flashes of electricity. Recently, an unusual rocket-triggered lightning strike was caught on video by lightning researchers in Florida, and its curious course from cloud to ground is described in a new scientific paper.
5 October 2012
Rare upward lightning videos reveal potential downward triggers
Meteorologists have documented upward lightning, which travels upward from the ground to the clouds, since 1939, but they remain puzzled about how it happens. Now, one research team’s analysis of high-speed video taken in Rapid City, South Dakota, captures a possible clue: a downward flash that preceded most upward lightning filmed by the observers.
GeoSpace is a blog on Earth and space science, managed by AGU’s Public Information staff. The blog features posts by AGU writers and guest contributors on all sorts of relevant science topics, but with a focus on new research and geo and space sciences-related stories that are currently in the news.