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sciam.com » Scientific American - Nov 13, 2008
Two groups of researchers searching for extrasolar planets--planets orbiting stars other than our own sun--laid claim today to an astronomy milestone: photographing extrasolar planets directly, rather than inferring …
sciam.com » Scientific American - Nov 10, 2008
If current theories prove correct, ordinary matter--all that we can see, smell and touch--makes up just a fraction, maybe 4 percent, of the universe. The rest comes from the so-called dark sector: dark matter and dark …
sciam.com » Scientific American - Physics - Nov 4, 2008
If astronauts hope to ever set foot on Mars, myriad technical challenges will need to be overcome, not the least of which is shielding space travelers from bombardment by energetic particles. Outside Earth's protective …
sciam.com » Scientific American - Sep 24, 2008
Editor's Note: This story was originally printed in the February 2004 issue of Scientific American. We are reposting this story because author Adam Riess was selected as a MacArthur Fellow in 2008 by the MacArthur …
sciam.com » Scientific American - Physics - Sep 23, 2008
Editor's Note: This story was originally printed in the February 2004 issue of Scientific American. Author Adam Riess was selected as a MacArthur Fellow in 2008 by the MacArthur Foundation. From the time of Isaac …
sciam.com » Scientific American - Space - Sep 11, 2008
A new study of a stellar explosion visible from halfway across the universe finds that the blast had an unusual structure that researchers heretofore had never observed. Gamma-ray burst GRB 080319B was already on …
sciam.com » Scientific American - Physics - Sep 3, 2008
Researchers are closing in on ironclad evidence for the black hole believed to lurk at the center of our Milky Way galaxy. [More]
sciam.com » Scientific American - Space - Aug 21, 2008
Researchers say they have figured out how a mysterious clutch of massive stars could have come into existence a few trillion miles from the supermassive black hole at the center of the Milky Way. [More]
sciam.com » Scientific American Topic - Atmospheric Sciences - Aug 13, 2008
Astronomers' mental image of Titan, the solar system's second-largest moon, used to be that of a vast swimming pool. But maybe they should have imagined a water bed instead. [More]
sciam.com » Scientific American - Physics - Aug 13, 2008
Although the skies in central Europe were clouded over, observers in Mediterranean countries had an unobstructed view of this unique natural spectacle. A few flight hours were all it took to reach the totality zone of …