This image depicts gut microbiota.

Improved survival shown in early-stage Hodgkin's Disease patients who receive radiation therapy

Patients with stage I and II Hodgkin's Disease who receive consolidated radiation therapy (RT) have a higher 10-year survival rate of 84 percent, compared to 76 percent for patients who...

Run, cheetah, run

Speed and agility are hallmarks of the cheetah: The big predator is the fastest land animal on Earth, able to accelerate to 60 mph in just a few seconds. As...

Meteorite that doomed dinosaurs remade forests

This is a fossilized leaf of <i>Vitis stantonii</i>, a grapelike plant from the Hell Creek Formation in North Dakota. Blonder is especially interested in the venation network of each leaf, because veins may be a very good proxy for temperature via their role in constraining leaf water usage. "Fortunately many fossils have exquisite preservation of veins," he said.The meteorite impact that spelled doom for the dinosaurs 66 million years ago decimated the evergreens among the flowering plants to a much greater extent than their deciduous peers, according...

Stanford-led study assesses the environmental costs and benefits of fracking

This is a fracking operations at a well pad near a farm over the Marcellus shale formation in Pennsylvania.A strange thing happened on the way to dealing with climate change: Advances in hydraulic fracturing put trillions of dollars' worth of previously unreachable oil and natural gas within humanity's...

Fluid mechanics suggests alternative to quantum orthodoxy

The central mystery of quantum mechanics is that small chunks of matter sometimes seem to behave like particles, sometimes like waves. For most of the past century, the prevailing explanation...

In Joslin trial, Asian Americans lower insulin resistance on traditional diet

This is George King, M.D., Chief Scientific Officer at Joslin and Professor of Medicine at Harvard Medical School.Why are Asian Americans at higher risk of developing type 2 diabetes than Caucasian Americans, and prone to develop the disease at lower body weights? One part of this puzzle...

New research shows tornadoes occurring earlier in 'Tornado Alley'

Peak tornado activity in the central and southern Great Plains of the United States is occurring up to two weeks earlier than it did half a century ago, according to...

Healthy humans make nice homes for viruses

Human herpesvirus 6, pictured above, is just one of numerous viruses found living in and on the bodies of healthy humans. The virus commonly causes illness in young children but is found in the mouths of some healthy young adults, where its presence indicates an active viral infection despite a lack of symptoms.The same viruses that make us sick can take up residence in and on the human body without provoking a sneeze, cough or other troublesome symptom, according to new research...

Human faces are so variable because we evolved to look unique

The variety of human faces.The amazing variety of human faces -- far greater than that of most other animals -- is the result of evolutionary pressure to make each of us unique and easily...

Research offers new way to predict hurricane strength, destruction

This is Vasu Misra, associate professor of meteorology and co-director of the Florida Climate Institute at Florida State University.A new study by Florida State University researchers demonstrates a different way of projecting a hurricane's strength and intensity that could give the public a better idea of a storm's...

Smallest known galaxy with a supermassive black hole

This Hubble Space telescope image shows the gargantuan galaxy M60 in the center, and the ultracompact dwarf galaxy M60-UCD1 below it and to the right, and also enlarged as an inset. A new international study led by University of Utah astronomer Anil Seth and published in the journal Nature found that M60-UCD1 is the smallest known galaxy with a supermassive black hole at its center, suggesting the dwarf galaxy originally was much larger but was stripped of its outer layers by gravity from galaxy M60 over billions of years. M60's gravity also is pulling galaxy NGC4647, upper right, and the two eventually will collide. (NOTE: for a version of this photo with the galaxy names labeled, email <a href="mailto:lee.siegel@utah.edu">lee.siegel@utah.edu</a>.)A University of Utah astronomer and his colleagues discovered that an ultracompact dwarf galaxy harbors a supermassive black hole -- the smallest galaxy known to contain such a massive light-sucking...

Nature of war: Chimpanzees inherently violent according to study

Of all of the world's species, humans and chimpanzees are some of the only to engage in coordinated attacks on other members of their same species. Jane Goodall was among...

Expedition finds Nemo can travel great distances to connect populations

Clownfish spend their entire lives nestling in the protective tentacles of host anemones.Clownfish spend their entire lives nestling in the protective tentacles of host anemones, but new research shows that as babies they sometimes travel hundreds of kilometres across the open ocean....

Early Earth less hellish than previously thought

Calvin Miller is shown at the Kerlingarfjoll volcano in central Iceland. Some geologists have proposed that the early Earth may have resembled regions like this.Conditions on Earth for the first 500 million years after it formed may have been surprisingly similar to the present day, complete with oceans, continents and active crustal plates.

First eyewitness accounts of mystery volcanic eruption

This eruption occurred just before the 1815 Tambora volcanic eruption which is famous for its impact on climate worldwide, with 1816 given memorable names such as 'Eighteen-Hundred-and-Froze-to-Death', the 'Year of...

Researchers study vital 'on/off switches' that control when bacteria turn deadly

No matter how many times it's demonstrated, it's still hard to envision bacteria as social, communicating creatures.

Making quantum dots glow brighter

This image shows the experimental set-up researchers used to analyze the behavior of quantum dots placed on metal oxides.  A laser illuminated the quantum dots to make them glow and a spectrometer was used to analyze the light they emitted.Researchers from the University of Alabama in Huntsville and the University of Oklahoma have found a new way to control the properties of quantum dots, those tiny chunks of semiconductor...

Novel capability enables first test of real turbine engine conditions

Manufactures of turbine engines for airplanes, automobiles and electric generation plants could expedite the development of more durable, energy-efficient turbine blades thanks to a partnership between the U.S. Department of...

Scientists twist radio beams to send data

This is a graphic showing the intensity of the radio beams after twistingBuilding on previous research that twisted light to send data at unheard-of speeds, scientists at USC have developed a similar technique with radiowaves, reaching high speeds without some of the...

The future face of molecular electronics

Zigzag picene is more intact than straight pentacene on silver.The emerging field of molecular electronics could take our definition of portable to the next level, enabling the construction of tiny circuits from molecular components. In these highly efficient devices,...

'Smart material' chin strap harvests energy from chewing

This is the experimental set up of an energy harvesting chin strap.A chin strap that can harvest energy from jaw movements has been created by a group of researchers in Canada.