UNIVERSITY PARK, Pa. — Earthquakes that last minutes rather than seconds are a relatively recent discovery, according to an international team of seismologists. Researchers have been aware of these slow earthquakes only for the past five to 10 years because of new tools and new observations, but these tools may explain the triggering of some […]
Fairbanks, Alaska— Alaska’s melting glaciers remain one of the largest contributors to the world’s rising sea levels, say two University of Alaska Fairbanks geophysicists.
Clouds of gas and interstellar dust are the raw materials from which stars are made. But these tiny dust grains block our view of what lies within and behind the clouds — at least at visible wavelengths — making it difficult to observe the processes of star formation.
On May 9, the daily mean concentration of carbon dioxide in the atmosphere of Mauna Loa, Hawaii, surpassed 400 parts per million (ppm) for the first time since measurements began in 1958. Independent measurements made by both NOAA and the Scripps Institution of Oceanography have been approaching this level during the past week.