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From Triton's active geysers to the Sun's seething flares, newly enhanced images from U.S. and foreign space probes depict the solar system as never before
Noreen Grice has given the visually impaired a feel for the universe
The Smithsonian Astrophysical Observatory probes the universe for the unimaginable
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The world's largest (maybe) 9-planet solar system model goes up along Route 1 in northern Maine
It's Pluto, with its moon, Charon
The exquisite telescopes crafted by Alvan Clark and his sons helped make the last half of the 19th century a golden age of astronomy
Smithsonian astronomer Margaret Geller plotted the bubble structure of the universe. Now she's working to find out how it got that way
High schoolers ask: would metamorphosis aboard a space shuttle mission yield normal butterflies?
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Smithsonian and NASA's Chandra x-ray observatory sheds new light on the mysteries of the universe
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Three Smithsonian astronomers run a worldwide news service about what is happening overhead
The space agency crashed a satellite on the moon in a search for water. It wants to "shoot" a comet.
Light travels 186,000 miles per second in a vacuum; in Lene Hau's lab, it ambles at 38 miles an hour
As prices skyrocket, gonzo collectors are combing the globe for these celestial fragments—and riling researchers
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A cloud of spacecraft parts and debris envelops the earth. Keeping track of it takes the best we have
For everyday folks and presidents, too, the Naval Observatory is a fascinating place to study the stars
An intergalactic war is going on, but not the kind we used to read about in science fiction magazines
Bursts of gamma rays have been a mystery for 30 years; Now, with new satellites, we have some clues
Page 37 of 38
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