SCIENCE IN THE NEWS DAILY
At Home in the Universe
from Science News
When Lewis and Clark started exploring the West, they didn't know much about what lay beyond St. Louis. Neither, at first, did astronomers know much about cosmic realms beyond Uranus.
But just as 19th century explorers filled in huge blanks on the American map, so did 20th century skywatchers flesh out a much greater map--of frontiers far beyond the solar system, out across the entire Milky Way. Now, in the last few years, cosmic cartography has again redrawn modern science's picture of the galaxy, from the inside out.
Surprising new findings from this endeavor begin at the Milky Way's heart, where astronomers recently spotted a tendril of gas streaming toward the galaxy's central black hole. Next year, scientists will have a ringside seat for the first time as the matter swings perilously close to its doom.
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PODCASTS: From Balloons to Space Stations: Studying Cosmic Rays
Cosmic rays have mysterious qualities about them that scientists continue to research in order to better understand their origins and composition. Dr. Eun-Suk Seo, a professor of physics at the University of Maryland, and her colleagues, fly enormous balloons as large as a football stadium and a volume of 40-million-cubic feet for extended periods over Antarctica to study particles coming from cosmic rays before they break up in the atmosphere.
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