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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PODCAST & VIDEO: 3D Printing Replacement Body Parts
Regenerative medicine, a fledgling field with the aim of regrowing parts from a person’s own cells, is being amplified with 3D-printing technology, which can now use organic materials to create scaffolds that cells need to grow into their final forms. Richard Wysk, a professor of industrial and systems engineering at North Carolina State University, discusses the latest successes with this research, and the timeline for creating more complicated structures.
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