<p>This collage shows NASA/ESA Hubble Space Telescope images of six different galaxy clusters. The clusters were observed in a study of how dark matter in clusters of galaxies behaves when the clusters collide. 72 large cluster collisions were studied in total.

<p>The clusters shown here are, from left to right and top to bottom: MACS J0416.1-2403, MACS J0152.5-2852, MACS J0717.5+3745, Abell 370, Abell 2744 and ZwCl 1358+62.

Family income, parental education related to brain structure in children and adolescents

This is a composite image showing the relationship between brain surface expansion and age in children 3-20 years.Characterizing associations between socioeconomic factors and children's brain development, a team including investigators from nine universities across the country reports correlative links between family income and brain structure. Relationships between...

New lobster-like predator found in 508 million-year-old fossil-rich site

This is a holotype of <i>Yawunik kootenayi</i>.What do butterflies, spiders and lobsters have in common? They are all surviving relatives of a newly identified species called Yawunik kootenayi, a marine creature with two pairs of eyes...

Pesticides in fruit and vegetables linked to semen quality

The first study to investigate the relationship between eating fruit and vegetables containing pesticide residues and the quality of men's semen has shown a link with lower sperm counts and...

Bitter chocolate: Illegal cocoa farms threaten Ivory Coast primates

Study co-author Gonedele Sere, on left, holds a cocoa plant found at an illegal farm in the Dassioko Forest Reserve in Ivory Coast.Researchers surveying for endangered primates in national parks and forest reserves of Ivory Coast found, to their surprise, that most of these protected areas had been turned into illegal cocoa...

Bats obey 'traffic rules' when trawling for food

Foraging bats obey their own set of 'traffic rules', chasing, turning and avoiding collisions at high speed, new research from the University of Bristol has found.

Massive study is first to explore historical ocean response to abrupt climate change

At the UC Davis Bodega Marine Laboratory, Sarah Moffitt examines fossils within a marine sediment core.A 30-foot-long core sample of Pacific Ocean seafloor is changing what we know about ocean resiliency in the face of rapidly changing climate. A new study reports that marine ecosystems...

Comet dust: Planet Mercury's 'invisible paint'

New research suggests that carbon from cometary material that bombards the Mercury may be the reason the planet's surface is so dark. Experiments show that impact material is significantly darkened when impacts occur in the presence of complex organics.A team of scientists has a new explanation for the planet Mercury's dark, barely reflective surface. In a paper published in Nature Geoscience, the researchers suggest that a steady dusting...

New study shows bacteria can use magnetic particles to create a 'natural battery'

New research shows bacteria can use tiny magnetic particles to effectively create a 'natural battery.' According to work published in journal Science on 27 March, the bacteria can load electrons...

Mist-collecting plants may bioinspire technology to help alleviate global water shortages

<i>Lychnis sieboldii</i> was studied to uncover the water collection-and-release secrets of its hairy leaves.Plants living in arid, mountainous and humid regions of the planet often rely on their leaves to obtain the moisture they need for survival by pulling mist out of the...

Next important step toward quantum computer

Physicists at the Universities of Bonn and Cambridge have succeeded in linking two completely different quantum systems to one another. In doing so, they have taken an important step forward...

Antarctic ice shelves rapidly thinning

A new study led by Scripps Institution of Oceanography at UC San Diego researchers has revealed that the thickness of Antarctica's floating ice shelves has recently decreased by as much as 18 percent in certain areas over nearly two decades,...

Only 1 of 32 hockey helmets tested earn 3-star rating

Stefan Duma, head of Virginia Tech's Department of Biomedical Engineering and Mechanic and the Harry Wyatt Professor in Engineering, has spearheaded research in injury biomechanics within athletics, military combat, and vehicular crashes for more than a decade.Virginia Tech has helped change football for a decade, making the sport safer for athletes without losing the thrill of participating or watching a rugged, intense sport. Now its College...

Bariatric surgery before joint replacement can improve outcomes in obese patients

This is Emily Dodwell, MD.Obesity is not only a risk factor for developing knee and hip arthritis. It is also linked to less favorable outcomes after joint replacement surgery. Two new studies at Hospital...

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Short bouts of high-intensity exercise before a fatty meal best for vascular health

A short burst of intensive exercise before eating a high fat meal is better for blood vessel function in young people than the currently recommended moderate-intensity exercise, according to a...

A peek at the secret life of pandas

A camera trap captures a panda walking through the snow in the Wolong Nature Reserve in Sichuan, ChinaReclusive giant pandas fascinate the world, yet precious little is known about how they spend their time in the Chinese bamboo forests. Until now.

Thousands of atoms entangled with a single photon

Physicists from MIT and the University of Belgrade have developed a new technique that can successfully entangle 3,000 atoms using only a single photon. The results, published today in the...

Brain tumor cells decimated by mitochondrial 'smart bomb'

The new drug MP-MUS (yellow) attacks cancer cell mitochondria by infiltrating both inner and outer membranes (green) after being converted from an inactive, non-toxic form to an active, toxic form by the enzyme MAO-B (purple). Once inside, the drug damages mitochondrial DNA, which cannot be repaired.An experimental drug that attacks brain tumor tissue by crippling the cells' energy source called the mitochondria has passed early tests in animal models and human tissue cultures, say Houston...

Scientists coax stem cells to form 3-D mini lungs

Scientists, led by the University of Michigan Medical School, coax stem cells to form mini lungs, 3-D structures that mimic human lungs and survived in the lab for 100 days.Scientists have coaxed stem cells to grow the first three-dimensional mini lungs.

UNH geologist identifies new source of methane for gas hydrates in Arctic

University of New Hampshire geologist Joel Johnson (center, with beard) prepares to collect seismic data on board the research vessel Helmer Hanssen in the Fram Strait.Research led by a University of New Hampshire professor has identified a new source of methane for gas hydrates -- ice-like substances found in sediment that trap methane within the...

High-tech method allows rapid imaging of functions in living brain

These images show fast functional photoacoustic microscopy of the mouse brain. Figure (d, left) shows a representative x-y projected brain vasculature image through an intact skull. Figure (e) shows a representative enhanced x-z projected brain vasculature image. Figure (f) shows photoacoustic microscopy of oxygen saturation of hemoglobin in the mouse brain, acquired by using the single-wavelength pulse-width0based method with two lasers.Researchers studying cancer and other invasive diseases rely on high-resolution imaging to see tumors and other activity deep within the body's tissues. Using a new high-speed, high-resolution imaging method, Lihong...

Sexual selection isn't the last word on bird plumage, UWM study shows

The Gouldian finch was one of 977 species examined by UWM biologist Peter Dunn and his research partners in a worldwide study of the evolution of bird colors. This photograph shows a male.In the world of bird fashion, the guys seem to have all the fun: brighter feathers, sharper accessories, more pizzazz.

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