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Yahoo!
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The New York Times
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A Quandary on Blood Drops in the Brain
Improvements in scanning techniques are making it easier to see microbleeds in the brain, but it?s unclear what should be done about them. 
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Discovery.com
| Celestial Stars and Stripe Revealed in Hubble Image
Energy released from an exploding star reveals itself in an image of stars and a stripe. |
| Madagascar Hopes Tourism Saves 'Noah's Ark'
Ecotourism may help save the panoply of wildlife in Madagascar. |
| Early Aussie Tattoos Match Rock Art
Rock art in Australia is matched with early documentations of human tattoos. |
| Mars Lander's Next Bake Test Could Be Its Last
The oven in the Mars lander may only have one more chance to test soil for signs of life. |
| Watermelon Has Viagra-Like Effect
Watermelon can help relax the body's blood vessels, similar to how Viagra works. |
| Grisly Human Sacrifice Revealed at Syria Dig
Around 4,000 years ago, a skilled acrobat was killed ceremonially in what is now Syria. |
| Cassini Starts Saturn Grad School
After a four-year tour of Saturn, the Cassini probe is ready for round two. |
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ScienceDaily
Agriculture Linked To Frog Sexual Abnormalities
A farm irrigation canal would seem a healthier place for toads than a ditch by a supermarket parking lot. But scientists have found the opposite is true. In a study with wide implications for a longstanding debate over whether agricultural chemicals pose a threat to amphibians, zoologists have found that toads in suburban areas are less likely to suffer from reproductive system abnormalities than toads near farms -- where some individual animals had both testes and ovaries.  |
Bone Marrow Alternative: Stem Cells From Umbilical Cord May Be Used To Treat Hepatic Diseases
Researchers from the Universities of Granada and León have shown that mononuclear blood cells from human umbilical cord can be an effective alternative to bone marrow. This work, to be published in the journal Cell Transplantation, could potentially mean a great advance in regenerative hepatic medicine.  |
Mercury's Surface Dominated By Volcanism And Iron-deficiency
Multispectral data on the composition of rock untis of the surface of Mercury show a widespread role for volcanism and an apparent deficiency in iron in the rocks' minerals.  |
Women Over 90 More Likely To Have Dementia Than Men
Women over 90 are significantly more likely to have dementia than men of the same age, according UC Irvine researchers involved with the 90+ Study, one of the nation's largest studies of dementia and other health factors in the fastest-growing age demographic.  |
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Scientists Set Out To Measure How We Perceive Naturalness
Scientists at the National Physical Laboratory are working towards producing the world's first model that will predict how we perceive naturalness. The results could help make synthetic products so good that they are interpreted by our senses as being fully equivalent to the "real thing," but with the benefits of reduced environmental impact and increased durability.  |
Music Went With Cave Art In Prehistoric Caves
Thousands of years later, we can view stone-age art on cave walls, but we can't listen to the stone-age music that would have accompanied many of the pictures. Researchers report that the most acoustically resonant place in a cave -- where sounds linger or reverberate the most -- was also often the place where the pictures were densest. In many sites, flutes made of bone are to be found nearby.  |
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Digg Science
| Save the Planet, Save Cash: 25 Best Ways to Green Your Green
"Going eco-friendly.....doesn't that cost extra?" Tired of hearing that line? So are we. So let's bury this assumption once and for all! Here's how to save a ton of cash. |
| 12 Tips To Help You Become an Armchair Environmentalist
Become an environmentalist + increase my home energy savings without having to change my lazy lifestyle? Now we're talking! |
| Your Laptop's Dirty Little Secret
But the tech industry has a dirty little secret: it has toxic waste of its own. Phones and computers contain dangerous metals like lead, cadmium and mercury, which can contaminate the air and water when those products are dumped. |
| Does the Sun look smaller to you? Earth was at aphelion.
Criminy, I almost forgot: today, July 4th, at roughly 08:00 UT, the Earth was at aphelion. Uh, what? I hear you ask. OK, brief astrolesson for ya, then back to the grill! |
| APOD: SN 1006 Supernova Remnant
A new star, likely the brightest supernova in recorded human history, lit up planet Earth's sky in the year 1006 AD. The expanding debris cloud from the stellar explosion, found in the southerly constellation of Lupus, still puts on a cosmic light show across the electromagnetic spectrum. |
| Moon mistaken for a UFO
Police in Wales were called to investigate a mysterious flying saucer, only to discover it was the moon. |
| Up Close View of the Space Shuttle's Main Engine
Visitors to the National Mall get an up close and personal view of the space shuttle's main engine thanks to the display provided by the Stennis Space Center. |
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Scientific American
Coal War: Georgia Court Halts Construction of New Coal-Fired Plant [News]
A Georgia court this week halted construction of a new 1,200-megawatt coal-fired power plant on the Chattahoochee River, dubbed Longleaf, because backers failed to provide a plan to limit climate change–causing carbon dioxide emissions from it. [More] |
Texas Archaeological Dig Challenges Assumptions about First Americans [News]
FLORENCE, TEX.--"Look at that--isn't it gorgeous?" Sandy Peck asks as she rinses dirt from a flaked stone about the length and width of a pinky finger. Peck runs a hose over soil on a fine-mesh screen, prodding at stubborn clods of clay with a muddy glove. "Look, there's another one." View Slide Show of the Dig [More] |
Mercury Flyby Reveals Active (but Shrinking) Core [News]
The first flyby of the planet Mercury in more than 30 years is resolving some long-standing puzzles about the closest planet to the sun. Among the findings: the planet's iron-rich core seems to be shrinking, causing its crust to buckle and crack. [More] |
News Bytes of the Week--Making Beautiful Music: Why the Stradivarius Violin is Worth Millions [News]
What makes the unique sound of a Stradivarius violin?The wood, of course. Using x-ray images taken from multiple different angles, radiologist Berend Stoel of Leiden University Medical Center in the Netherlands proved that the spruce and maple wood used in five violins made either by Antonio Stradivari or Giuseppe Guarneri del Gesù--the rival master luthiers of Cremona--had fewer variations in their density than that in seven contemporary violins. The density of the wood determines how a violin resonates with sound, which may explain why Stradivarius and Guarnerius violins are coveted by musicians worldwide and fetch prices of several million dollars. It may also allow modern instrument makers to finally match the perfection of past masters. [More] |
Unwelcome Immigrants: Can the U.S. Thwart Asian Moths? [News]
In a major step toward controlling the spread of tree-destroying gypsy moths, China has agreed to allow scientists to inspect forests near shipping ports to gauge the risk of the pests there hitching rides on ships to the U.S. View Gypsy Moth Slide Show [More] |
Does Herpes Cause Brain Cancer? [News]
Editor's Note: This story will be published in the next issue of Scientific American Mind. The deadliest and most common type of brain cancer has a strange bedfellow: cytomegalovirus, a kind of herpes present in about 80 percent of the U.S. population. Now scientists are exploiting this coincidence to treat the cancer with a vaccine that targets the virus and slows tumor regrowth. [More] |
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Space.com
Giant Jupiter Shines Bright
Three planets are now putting on a show as prominent evening luminaries.  |
Volcanoes on Mercury Solve 30-year Mystery
First MESSENGER flyby confirms volcanism, gives data on Mercury's magnetic field.  |
The Future of Space Robots
Future robots may cooperatively explore alien worlds.  |
Spacecraft Woken for Asteroid Encounter
The comet-chasing Rosetta spacecraft will fly past asteroid Steins this September.  |
Mars Lander's Next Bake Test Could Be Its Last
NASA's Mars Phoenix Lander's next whiff of Martian dirt could be its last.  |
Adopt a Scientist
A new regular feature highlights research undertaken by SETI scientists.  |
Strange Asteroid Shapes Explained
A vast database that shows asteroids are shaped by small impacts over time.  |
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BBC News
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| Physics names winners and losers
UK physics and astronomy will spend nearly £2bn in the next three years, but some programmes face cuts. |
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CNN
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Shuttle back with 'beautiful landing'
Read full story for latest details.
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Phoenix lander shakes its way to success
Read full story for latest details.
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Science News
| Math Trek: The Noisy Game of Baseball
Predicting a baseball player's future batting average (and many other things) is not as simple as relying on past performance, mathematicians say. |
| Food for Thought: The Costs of Meat and Fish
The animal protein in our diets can have a high environmental cost. |
| Timeline: From the April 9, 1938, issue
Mining limestone to make steel, a bright little bulb, setting a new record on the sun and finding buried thermos bottles. |
| Science Safari: Mary, Mary, Quite Contrary . . .
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| Letter from the Publisher
is about to pause briefly before presenting itself to you in a new form, both in print and online. |
| Antibiotic Alligator: Promising proteins lurk in reptile blood
Scientists are zeroing in on alligator blood proteins that show promise for fighting disease-causing microbes. |
| Einstein's Invisible Hand: Is relativity making metal act like a noble gas?
Element 114 should be chemically similar to lead, but controversial experimental data shows it behaves more like a noble gas, potentially subverting the periodic table's structure. |
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USAToday
Asteroid anniversary recalls Earth's rocky history
Summertime: a time for sunny days, beach weekends and of course, leisurely reflections on the end of the world and the monster asteroids that could smack into us. The centennial anniversary of the last big impact, the 1908 Tunguska blast that rocked Siberia, falls Monday, June 30, bringing with it a reminder of the very slight chance that a hunk of space rock out there might have Earth's number.
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Merger of US earth sciences agencies is proposed
From climate change to volcanoes and earthquakes, the world's growing challenges have leaders in earth science proposing a merger of agencies that study the planet.
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Phoenix Mars Lander's next bake-and-sniff could be its last
The Phoenix lander's first chemical sniff of Martian soil did not turn up any trace of the building blocks of life. Its next whiff could be its last.
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Washington's boyhood home found, but no hatchet
The archaeologists were delighted to at last find the remains of George Washington's boyhood home but got stumped when they looked for evidence of the cherry tree and rusty hatchet.
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NASA's Voyager probes show solar system dented, not round
When viewed from the rest of the galaxy, the edge of our solar system appears slightly dented as if a giant hand is pushing one edge of it inward, far-traveling NASA probes reveal.
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Earth emits ear-splitting sounds in a fine 'hello' to aliens
Earth emits an ear-piercing series of chirps and whistles that could be heard by any aliens who might be listening, astronomers have discovered.
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Study: Long-term benefit in 'magic mushroom' drug
In 2002, at a Johns Hopkins University laboratory, a business consultant named Dede Osborn took a psychedelic drug as part of a research project. She felt like she was taking off. She saw colors. Then it felt like her heart was ripping open. But she called the experience joyful as well as painful, and says that it has helped her to this day.
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NASA
| New Discoveries at Mercury
Mercury's magnetic field is "alive." Volcanic vents ring the planet's giant Caloris basin while the planet itself is surrounded by a plasma nebula of unexpected complexity. |
| Planets Align for the 4th of July
Look beyond the fireworks on 4th of July weekend. A trio of worlds is converging for a pretty sunset sky show. |
| The Tunguska Impact--100 Years Later
One hundred years after the Tunguska event in Siberia, scientists review what they've learned about the mysterious blast from the heavens. |
| NASA to Attempt Historic Solar Sail Deployment
This summer, NASA engineers will try to realize a dream older than the Space Age itself: the deployment of a working solar sail in Earth orbit. The name of the device is NanoSail-D and it is scheduled for launch onboard a SpaceX Falcon 1 rocket as early as July 29, 2008. |
| Apollo Relic Reveals its Secrets
In 1967, Surveyor 3 landed on the Moon. Two years later, Apollo astronauts visited the little unmanned spacecraft and brought pieces of it home to Earth. Now, a portion of Surveyor's robotic arm, the scoop it used to sample moondust, is teaching researchers some long-lost secrets. |
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ScienceNOW
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