News tagged with black
First black holes may have incubated in giant, starlike cocoons
Nov 24, 2009 |
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(PhysOrg.com) -- The first large black holes in the universe likely formed and grew deep inside gigantic, starlike cocoons that smothered their powerful x-ray radiation and prevented surrounding gases from ...
Retailers look to stretch out Cyber Monday push
Nov 23, 2009 |
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(AP) -- Retailers are thinking beyond Cyber Monday - a holiday marketing promotion many push for the Monday after Thanksgiving - and trying to spin their discounts into into Cyber Weekends or even Cyber Weeks.
Tree-eating bugs threaten Monarch butterfly in Mexico
Nov 21, 2009 |
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The mysterious Monarch butterfly, which migrates en masse annually between Canada and Mexico, is now facing a new peril: another insect thriving in Western Mexican forests.
Black Friday: On your mark, get set, go!
Other Sciences / Social Sciences
Nov 18, 2009 |
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(PhysOrg.com) -- For most Americans, Thanksgiving Day means a flurry of food, family and football. But the real frenzy begins the day after, say researchers at the University of Michigan and Western Michigan University.
African-American men at higher risk of false positives in prostate testing
Nov 17, 2009 |
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(PhysOrg.com) -- While an elevated prostate-specific antigen (PSA) test can be frightening news for men, new research shows that sometimes the levels are caused by a naturally occurring hormone, and may not indicate a need ...
Record-Breaking Radio Astronomy Project to Measure Sky with Extreme Precision
Nov 16, 2009 |
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(PhysOrg.com) -- Astronomers will tie together the largest collection of the world's radio telescopes ever assembled to work as a single observing tool in a project aimed at improving the precision of the ...
Underwater robot probes depths for Istanbul quake clues
Space & Earth / Earth Sciences
Nov 14, 2009 |
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A state-of-the-art underwater robot called BOB may hold the key to protecting millions of people around Turkey's biggest city against a massive earthquake scientists say is all but inevitable.
Mysterious X-rays from a Nearby Galaxy
Nov 13, 2009 |
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(PhysOrg.com) -- The nucleus of an active galaxy, an AGN, contains a massive black hole that is vigorously accreting material. In the process it typically ejects jets of particles and radiates brightly at ...
Retailers use social media to advertise deals
Nov 12, 2009 |
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(AP) -- You may want to check Facebook and Twitter before heading to the mall the day after Thanksgiving.
NASA's Great Observatories Celebrate International Year of Astronomy
Nov 10, 2009 |
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(PhysOrg.com) -- A never-before-seen view of the turbulent heart of our Milky Way galaxy is being unveiled by NASA on Nov. 10. This event will commemorate the 400 years since Galileo first turned his telescope ...
Swift, XMM-Newton satellites tune into a middleweight black hole
Nov 10, 2009 |
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(PhysOrg.com) -- While astronomers have studied lightweight and heavyweight black holes for decades, the evidence for black holes with intermediate masses has been much harder to come by. Now, astronomers ...
Stars Fueled by Dark Matter Could Hold Secrets to the Universe
Nov 03, 2009 |
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(PhysOrg.com) -- The first stars in the universe may have been very different from the stars we see today, yet they may hold clues to understanding some of the mysterious features of the universe. These "dark ...
Plague on their house, but bush rats fight back
Nov 03, 2009 |
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(PhysOrg.com) -- Sydney's native bush rats were unintended victims of a campaign to exterminate foreign black rats during a plague epidemic in 1900, according to new research by scientists who plan to reintroduce ...
Fermi Telescope Detects Gamma-Ray From 'Star Factories' in Other Galaxies
Nov 02, 2009 |
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Nearby galaxies undergoing a furious pace of star formation also emit lots of gamma rays, say astronomers using NASA's Fermi Gamma-ray Space Telescope. Two so-called "starburst" galaxies, plus a satellite ...
New Celestial Map Gives Directions for GPS
Space & Earth / Space Exploration
Oct 29, 2009 |
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(PhysOrg.com) -- Many of us have been rescued from unfamiliar territory by directions from a Global Positioning System (GPS) navigator. GPS satellites send signals to a receiver in your GPS navigator, which ...
