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Today's news headlines from the sources selected by our team:

Astronomers See Disks Surrounding Black Holes, Strengthened Evidence For Current Explanation Of Quasars
For the first time, researchers have found a way to view the accretion disks surrounding black holes and verify that their true electromagnetic spectra match what astronomers have long predicted they would be. A black hole and its bright accretion disk have been thought to form a quasar, the powerful light source at the center of some distant galaxies. Using a polarizing filter, astronomers isolated the light emitted by the accretion disk from that produced by other matter in the vicinity of the black hole.
ScienceDaily: Space & Time News, Thu, 24 Jul 2008 06:03:27 GMT

Spitzer Reveals 'No Organics' Zone Around Pinwheel Galaxy
The Pinwheel galaxy is gussied up in infrared light in a new picture from NASA's Spitzer Space Telescope. The fluffy-looking galaxy, officially named Messier 101, is dominated by a mishmash of spiral arms. In Spitzer's new view, in which infrared light is color coded, the galaxy sports a swirling blue center and a unique, coral-red outer ring.
ScienceDaily: Space & Time News, Thu, 24 Jul 2008 06:03:27 GMT

New Project To Develop GPS-like System For Moon
The same researcher who is helping rovers navigate on Mars is leading a new effort to help humans navigate on the moon. When NASA returns to the moon -- the space agency has set a target date of 2020 to do so -- astronauts won't be able to use a global positioning system to find their way around, explained the professor of civil and environmental engineering and geodetic science.
ScienceDaily: Space & Time News, Thu, 24 Jul 2008 06:03:27 GMT

Cow power could generate electricity for millions
Converting livestock manure into a domestic renewable fuel source could generate enough electricity to meet up to three per cent of North America's entire consumption needs and lead to a significant reduction in greenhouse gas emissions (GHGs), according to US research published today, Thursday, 24 July, in the Institute of Physics' Environmental Research Letters.
PhysOrg: Science and Technology News, Thu, 24 Jul 2008 06:03:27 GMT

Judge: EPA must regulate ship water discharge
(AP) -- An appeals court Wednesday upheld a ruling ordering the Environmental Protection Agency to regulate the water discharged from ships as a way to protect local ecosystems from invasive species.
PhysOrg: Science and Technology News, Thu, 24 Jul 2008 06:03:27 GMT

Paying to save tropical forests could be a way to reduce global carbon emissions
Wealthy nations willing to collectively spend about $1 billion annually could prevent the emission of roughly half a billion metric tons of carbon dioxide per year for the next 25 years, new research suggests.
PhysOrg: Science and Technology News, Thu, 24 Jul 2008 06:03:27 GMT

Phoenix Completes Longest Work Shift
(PhysOrg.com) -- Phoenix early Tuesday finished its longest work shift of the mission. The lander stayed awake for 33 hours, completing tasks that included rasping and scraping by the robotic arm, in addition to atmosphere observations in coordination with simultaneous observations by NASA's Mars Reconnaissance Orbiter.
PhysOrg: Science and Technology News, Thu, 24 Jul 2008 06:03:27 GMT

Ancient Galactic Magnetic Fields Stronger than Expected
(PhysOrg.com) -- Mining the far reaches of the universe for clues about its past, a team of scientists including Philipp Kronberg of Los Alamos National Laboratory has proposed that magnetic fields of ancient galaxies like ours were just as strong as those existing today, prompting a rethinking of how our galaxy and others may have formed.
PhysOrg: Science and Technology News, Thu, 24 Jul 2008 06:03:27 GMT

Small Satellite Designed to Spot Big Bad Asteroids
A tiny Canadian satellite will track space rocks near Earth.
SPACE.com, Thu, 24 Jul 2008 06:03:27 GMT

The Exploding Star That Everyone Missed
An exploding star somehow escapes notice by astronomers.
SPACE.com, Thu, 24 Jul 2008 06:03:27 GMT

Solar Systems Like Ours May Be Rare
Solar systems with Jupiter-like planets may be rare in the universe.
SPACE.com, Thu, 24 Jul 2008 06:03:27 GMT

Mars Lander Team Applies for Mission Extension
Phoenix Mars Lander's team is looking to extend the spacecraft's mission on Mars.
SPACE.com, Thu, 24 Jul 2008 06:03:27 GMT

The 2008 Perseid Meteor Shower
The 2008 Perseid meteor shower peaks during the dark hours before dawn on Tuesday, August 12th, and forecasters say it should be a good show.
Science @ NASA, Thu, 24 Jul 2008 06:03:28 GMT

NASA Works to Improve Short-term Weather Forecasts
NASA scientists are using an infra-red sounder in space to improve short-term weather forecasting.
Science @ NASA, Thu, 24 Jul 2008 06:03:28 GMT

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SpaceRef.com
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