Archive: 10/01/2008

New Hydrogen Clouds in the M81 Group of Galaxies

A composite radio-optical image shows five new clouds of hydrogen gas discovered using the National Science Foundation's Robert C. Byrd Green Bank Telescope (GBT). The spiral galaxy M81 and its satellite, M82, are seen in ...

dateJan 10, 2008 in Astronomy
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Chandra data reveal rapidly whirling black holes

A new study using results from NASA's Chandra X-ray Observatory provides one of the best pieces of evidence yet that many supermassive black holes are spinning extremely rapidly. The whirling of these giant black holes drives ...

dateJan 10, 2008 in Astronomy
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NASA Scientists Predict Black Hole Light Echo Show

It’s well known that black holes can slow time to a crawl and tidally stretch large objects into spaghetti-like strands. But according to new theoretical research from two NASA astrophysicists, the wrenching gravity just ...

dateJan 10, 2008 in Astronomy
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MIT reports new twist in microRNA biology

MIT scientists have found a new way that DNA can carry out its work that is about as surprising as discovering that a mold used to cast a metal tool can also serve as a tool itself, with two complementary shapes each showing ...

dateJan 10, 2008 in
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Forces out of nothing

When a machine jams, it’s the fault of the engineer - or of physics. The latter is true at least for the first simple nanomachines which are slowed down by the Casimir effect. This force only works on the scale of a few ...

dateJan 10, 2008 in General Physics
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