As the brilliant comet 46P/Wirtanen streaked across the sky, NASA telescopes caught it on camera from multiple angles. NASA’s Hubble Space Telescope photographed comet 46P/Wirtanen on Dec. 13, when the comet was 7.4 million miles (12 million kilometers) from Earth. In this visible-light image, the comet’s nucleus is hidden in the center of a fuzzy […]
Alaska villages facing coastal disasters may be able to use new erosion-monitoring tools as part of their decision-making arsenal, thanks to a pilot study led by the University of Alaska Fairbanks. Lead author Chris Maio, an assistant professor of coastal geography at the UAF College of Natural Science and Mathematics, reported the findings on Dec. […]
[dropcap]I[/dropcap]n a new study published in the journal Nature Ecology & Evolution, an international team led by Professor Baoyu Jiang of Nanjing University and including Dr Michael Pittman of the Department of Earth Sciences, the University of Hong Kong, shows that pterosaurs had at least four types of feathers in common with their close relatives the […]
[dropcap]T[/dropcap]he ability to smell is critical for salmon. They depend on scent to avoid predators, sniff out prey and find their way home at the end of their lives when they return to the streams where they hatched to spawn and die. New research from the University of Washington and NOAA Fisheries’ Northwest Fisheries Science […]