One year before Alaska became part of America, 21-year old William Dall ascended the Yukon River on a sled, pulled by dogs. The man who left his name all over the state was in 1866 one of the first scientists to document the mysterious peninsula jutting toward Russia. He is probably the most thorough researcher […]
Several times in the distant past, our home planet has been cleansed of its residents, with the exception of a few plucky survivors. Perhaps the best known and most spectacular extinction was that of the dinosaurs, caused when a meteorite six miles in diameter crashed into Earth about 65 million years ago. There was another […]
During the coldest days of the last ice age, the Bering Land Bridge was 1,000 miles wide, a belt buckle the size of Australia that connected North America and Asia. That mysterious land of green plants, streams and hills persisted for thousands of years, until seas swelling with glacial melt ate it up. All that […]
Space weather affects snowplow drivers carving through Thompson Pass in a whiteout, Iowa farmers dropping seeds of corn, and wedding planners who release white doves during the ceremony. These and other customers subscribe to daily forecasts from the NOAA Space Weather Prediction Center in Boulder, Colorado. Rodney Viereck works there. He and his teammates monitor […]