Instruments typically used to detect the ground motion of earthquakes can also be used to identify the type of aircraft flying far overhead, research by University of Alaska Fairbanks scientists shows. That’s because aircraft sound waves also shake the ground, although to a much lesser extent. An aircraft’s type — a Cessna 185 Skywagon, for […]
The waters bordering North America could soon be inhospitable to critical marine creatures if the Northeastern Pacific Ocean continues to acidify at the current rate, a new study shows. Earth’s oceans have become approximately 30% more acidic since the industrial revolution began more than 200 years ago. Acidification changes marine chemistry and depletes key minerals that calcifying organisms, such […]
A double-tusked narwhal harvested in the study area by Inughuit hunters and used for analysis, Inglefield Bredning Fjord, Northwest Greenland (Photo: E. A. Podolskiy, August 2023).[/caption] Underwater passive acoustic recording is vital for researchers to monitor and study marine animals in their natural environment with minimal disturbance. “Using passive acoustic monitoring to detect acoustically active […]
An unusual triple whammy of solar outbursts, including one scientists call a cannibal, began hitting Earth this afternoon and is likely to bring the curtain up on spectacular aurora performances starting tonight. Events like this bring a risk of radio blackouts and satellite damage, according to the Space Weather Prediction Center of the National Oceanic and Atmospheric […]