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Physics and Astronomy News Archive: August 2006

Image: Honey, I Shrunk the Solar System
Honey, I Shrunk the Solar System
Source: JPL/NASA   Posted: 8/24/06
Pluto is no longer considered to be a planet (but a dwarf planet) and our solar system now has only eight (8) proper planets, astronomers of the IAU decided.

Image: NASA Finds Direct Proof of Dark Matter
NASA Finds Direct Proof of Dark Matter
Source: Chandra/NASA   Posted: 8/24/06
Dark matter and normal matter have been wrenched apart by the tremendous collision of two large clusters of galaxies. The discovery, using NASA's Chandra X-ray Observatory and other telescopes, gives direct evidence for the existence of dark matter.

Image: One-Two Particle Punch Poses Greater Risk for Astronauts
One-Two Particle Punch Poses Greater Risk for Astronauts
Source: BNL   Posted: 8/24/06
Scientists at the BNL discover why astronauts are at greater risk when they were exposed to two types of high-energy particles in a short period of time.

Image: Unraveling the Secrets of an Atomic Switch
Unraveling the Secrets of an Atomic Switch
Source: NIST   Posted: 8/24/06
Scientists at NIST have used a beam of electrons to move a single atom in a small molecule back and forth between two positions on a crystal surface.

Image: Chandra Independently Determines Hubble Constant
Chandra Independently Determines Hubble Constant
Source: Chandra   Posted: 8/8/06
A combination of X-ray and radio observations allowed astronomers to determine the Hubble constant using the so-called Sunyaev-Zeldovich effect.

Image: Red and Blue Lights in the Milky Way Galaxy
Red and Blue Lights in the Milky Way Galaxy
Source: NASA   Posted: 8/8/06
Scientists find possible origin of mysterious red and blue lights in the Milky Way galaxy.

Image: Hypernuclei at Jefferson Lab
Hypernuclei at Jefferson Lab
Source: Jlab   Posted: 8/8/06
Nuclear physicists are using Jefferson Lab's CEBAF accelerator to add an impurity — a special type of particle called a hyperon — to the nucleus.

Image: New Technique for Manipulation of Light Beams Demonstrated
New Technique for Manipulation of Light Beams Demonstrated
Source: Caltech   Posted: 8/8/06
A team of physicists, mathematicians, and electrical engineers has figured out a trick to keep light pulses from diverging or focusing.






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Albert Einstein
(1879-1955)





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