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Physics and Astronomy News Archive: February 2007

Image: Super-thin Filter, 50 Atoms Thick, Sorts Individual Molecules
Super-thin Filter, 50 Atoms Thick, Sorts Individual Molecules
Source: RochesterU   Posted: 2/23/07
A newly designed porous membrane, so thin it's invisible edge-on, may revolutionize the way doctors and scientists manipulate objects as small as a molecule.

Image: Extrasolars' light guides atmosphere research
Extrasolars' light guides atmosphere research
Source: MIT   Posted: 2/23/07
New observations of extrasolar planets reported by three teams of scientists.

Image: 20 Years of Surprises from Supernova 1987A
20 Years of Surprises from Supernova 1987A
Source: Harvard   Posted: 2/23/07
Twenty years ago, astronomers witnessed one of the brightest stellar explosions in more than 400 years. The titanic supernova, called SN 1987A, blazed with the power of 100 million suns for several months following its discovery on Feb. 23, 1987.

Image: Fluid Dynamics Works on Nanoscale in Real World
Fluid Dynamics Works on Nanoscale in Real World
Source: GaTech   Posted: 2/23/07
Using computer simulation experiments scientists show that the stochastic Navier-Stokes formulation does work for fluid nanojets and nanobridges in a vacuum.

Image: The Colorful Demise of a Sun-Like Star
The Colorful Demise of a Sun-Like Star
Source: JPL/NASA   Posted: 2/14/07
A new image from NASA's Hubble Space Telescope shows the colorful 'last hurrah' of a star like our sun.

Image: Flow of tiny bubbles mimics computer circuitry
Flow of tiny bubbles mimics computer circuitry
Source: MIT   Posted: 2/14/07
In work that could dramatically boost the capabilities of 'lab on a chip' devices, MIT researchers have created a way to use tiny bubbles to mimic the capabilities of a computer.

Image: Supernovae - Cosmic Lighthouses
Supernovae - Cosmic Lighthouses
Source: Max Plank   Posted: 2/14/07
Astrophysicists explain the differences in the brightness of supernova explosions

Image: Comets Clash at Heart of Helix Nebula
Comets Clash at Heart of Helix Nebula
Source: JPL/NASA   Posted: 2/14/07
A bunch of rowdy comets are colliding and kicking up dust around a dead star, according to new observations from NASA's Spitzer Space Telescope.

Image: Physicists find way to ‘see’ extra dimensions
Physicists find way to ‘see’ extra dimensions
Source: UWisc   Posted: 2/7/07
Peering backward in time to an instant after the big bang, physicists have devised an approach that may help unlock the hidden shapes of alternate dimensions of the universe.

Image: MIT 'optics on a chip' may revolutionize telecom, computing
MIT 'optics on a chip' may revolutionize telecom, computing
Source: MIT   Posted: 2/7/07
In work that could lead to completely new devices, systems and applications in computing and telecommunications, MIT researchers are bringing the long-sought goal of 'optics on a chip' one step closer to market.

Image: New Sensor Detects Direction of Sound Under Water
New Sensor Detects Direction of Sound Under Water
Source: Gatech   Posted: 2/7/07
Using optical fibers, researchers at the Georgia Institute of Technology have found a way to create a sensor that detects the direction from which a sound is coming under water.

Image: NASA-European Spacecraft Swoops Under Sun's Pole
NASA-European Spacecraft Swoops Under Sun's Pole
Source: JPL/NASA   Posted: 2/7/07
Joint NASA- and ESA-managed spacecraft Ulysses, has reached maximum latitude in its exploration of the heliosphere, the bubble in space blown out by the solar wind.



Science Quote

'There must be no barriers for freedom of inquiry. There is no place for dogma in science. The scientist is free, and must be free to ask any question, to doubt any assertion, to seek for any evidence, to correct any errors.'

J. Robert Oppenheimer
(1904-1966)


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