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10 December 2013
Trawling is a drag for continental shelf’s sediments
While GPS is normally deployed to home in on lost cell phones or navigate tricky driving routes, satellite tracking may help ocean researchers better understand how fishermen’s trawls scrape away the sediment compositions of the continental shelf.
Airborne viruses implicated in algal die-offs
Researchers think they might know one of the reasons why microscopic ocean-dwelling creatures get sick and die: they sneeze, spraying droplets containing a virus into the air. Algal blooms cover massive swathes of the ocean, converting carbon dioxide into oxygen, and playing an important role in nutrient regulation. Scientists know that a virus is often responsible for the die-off of a common algal species, a single-celled coccolithophore known as Emiliania …
Hey, it’s weird up here – there must be an earthquake in the atmosphere
Months before the devastating earthquake that struck Haiti in 2010, warning signs could be detected hundreds of miles above the Earth’s surface, according to new data presented Monday at the American Geophysical Union’s Fall Meeting. There were strange disturbances in a layer of the atmosphere called the ionosphere up to one month before the magnitude 7.0 earthquake struck about 10 miles southwest of Port-au-Prince, according to Pierre-Richard Cornely, an atmospheric …
Students collecting space dust may help find distant planets
NASA’s fastest spacecraft collects dust like no other scientific instrument. Hurtling through space on its one-way trip toward Pluto, New Horizons is measuring space dust — a technique that could help astronomers find planets in other solar systems.
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.