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Why Early Human Ancestors Took to Two Feet
A new study by archaeologists challenges evolutionary theories behind the development of our earliest ancestors from tree dwelling quadrupeds to upright bipeds capable of walking and ...full story -
Detection of the Cosmic Gamma Ray Horizon: Measures All the Light in the Universe Since the Big Bang
Radiation from all galaxies that ever existed suffuses the universe with a diffuse extragalactic background light (EBL). Measuring the EBL is as fundamental to cosmology as measuring heat ...full story -
Monkey Teeth Help Reveal Neanderthal Weaning
Most modern human mothers wean their babies much earlier than our closest primate relatives. But what about our extinct relatives, the Neanderthals? A team of U.S. and Australian ...full story -
Bacterium from Canadian High Arctic Offers Clues to Possible Life on Mars
The recent discovery of a bacterium that is able to thrive at minus 15 degrees Celsius, the coldest temperature ever reported for bacterial growth, is exciting because it offers clues about ...full story -
Drug Reverses Alzheimer's Disease Deficits in Mice
An anti-cancer drug reverses memory deficits in an Alzheimer's disease mouse model, new research shows. The article reviewed previously published findings on the drug bexarotene, approved ...full story -
Molecule That Triggers Sensation of Itch Discovered
Scientists report they have discovered in mouse studies that a small molecule released in the spinal cord triggers a process that is later experienced in the brain as the sensation of ...full story -
Accurate Distance Measurement Resolves Major Astronomical Mystery
Astronomers have resolved a major problem in their understanding of a class of stars that undergo regular outbursts by accurately measuring the distance to a famous example of the ...full story -
Earth's Mantle Affects Long-Term Sea-Level Rise Estimates
New findings reveal that the U.S. shoreline -- from Virginia to Florida -- has been uplifted by more than 210 feet, meaning less ice melted than expected. This is big news for scientists ...full story -
White Tiger Mystery Solved: Coat Color Produced by Single Change in Pigment Gene
White tigers today are only seen in zoos, but they belong in nature, say researchers reporting new evidence about what makes those tigers white. Their spectacular white coats are produced ...full story -
Motion Quotient: IQ Predicted by Ability to Filter Visual Motion
A brief visual task can predict IQ, according to a new study. This surprisingly simple exercise measures the brain’s unconscious ability to filter out visual movement. The study shows ...full story
- Why Early Human Ancestors Took to Two Feet
- All Universe's Light Since Big Bang Measured
- Monkey Teeth Help Reveal Neanderthal Weaning
- Arctic Life: Clues to Possible Life On Mars
- Drug Reverses Alzheimer's Deficits in Mice
- Molecule That Triggers Sensation of Itch Found
- Stellar Outbursts: Astronomical Mystery Solved
- Earth's Mantle Affects Long-Term Sea-Level Rise
- White Tiger Mystery Solved: It's in the Genes
- IQ Predicted by Ability to Filter Visual Motion
Biophysicists Measure Mechanism That Determines Fate of Living Cells
For the first time, biophysicists
have measured the molecular force
required to mechanically transmit
function-regulating signals within
a cell. A new laboratory method,
named the tension gauge tether
approach, has made it possible to
... > full story
- more on:
Scientists Offer First Definitive Proof of Bacteria-Feeding Behavior in Green Algae
Researchers have captured images
of green alga consuming bacteria,
offering a glimpse at how early
organisms dating back more than 1
billion years may have acquired
free-living photosynthetic cells.
... > full story
- more on:
Hubble Reveals the Ring Nebula’s True Shape
The Ring Nebula's distinctive
shape makes it a popular
illustration for astronomy books.
But new observations by NASA's
Hubble Space Telescope of the
glowing gas shroud around an old,
dying, sun-like star reveal a new
twist. ... > full story
- more on:
Hidden Population of Exotic Neutron Stars
Magnetars -- the dense remains of
dead stars that erupt sporadically
with bursts of high-energy
radiation -- are some of the most
extreme objects known in the
Universe. A major campaign using
NASA's Chandra X-ray Observatory
and several other satellites shows
... > full story
- more on:
Flat Spray-on Optical Lens Created
Engineers have made a breakthrough
utilizing spray-on technology that
could revolutionize the way
optical lenses are made and used. ... > full story
- more on:
The Secret Lives (and Deaths) of Neurons
Researchers have uncovered
surprising insights about how
nerve cells rewire themselves,
shedding light on a process linked
with neurodegenerative diseases
and neurodevelopmental disorders
like schizophrenia and autism. ... > full story
- more on:
Depression Linked to Telomere Enzyme, Aging, Chronic Disease
The first symptoms of major
depression may be behavioral, but
the common mental illness is based
in biology — and not limited
to the brain, new research
suggests. ... > full story
- more on:
Ants and Carnivorous Plants Conspire for Mutualistic Feeding
An insect-eating pitcher plant
teams up with ants to prevent
mosquito larvae from stealing its
nutrients, according to new
research. ... > full story
- more on:
Baby's Life Saved With Groundbreaking 3-D Printed Device That Restored His Breathing
A bioresorbable splint has been
created and used for first time at
the University of Michigan, where
doctors implanted the device in an
infant and stopped a
life-threatening condition called
... > full story
- more on:
Top 10 New Species of 2012
An amazing glow-in-the-dark
cockroach, a harp-shaped
carnivorous sponge and the
smallest vertebrate on Earth are
just three of the newly discovered
top 10 species selected by a
global committee of taxonomists. ... > full story
- more on:
Brain Can Be Trained in Compassion, Study Shows
A new study shows that adults can
be trained to be more
compassionate. The report
investigates whether training
adults in compassion can result in
greater altruistic behavior and
related changes in neural systems
underlying compassion. ... > full story
- more on:
Tests Lead to Doubling of Fuel Cell Life
Researchers working to improve
durability in fuel cell powered
buses have discovered links
between electrode degradation
processes and bus membrane
durability. The team is
quantifying the effects of
electrode degradation stressors in
... > full story
- more on:
- Biophysicists Measure Fate of Living Cells
- Bacteria-Feeding in Green Algae Confirmed
- Hubble reveals the Ring Nebula’s true shape
- Hidden Population of Exotic Neutron Stars
- Flat Spray-On Optical Lens Created
- The Secret Lives (And Deaths) of Neurons
- Depression Linked to Telomere Enzyme, Aging
- Ants, Carnivorous Plants: Mutualistic Feeding
- Baby's Life Saved With 3-D Printed Device
- Top 10 New Species of 2012
- Brain Can Be Trained in Compassion
- Tests Lead to Doubling of Fuel Cell Life
- more top science stories
Top Medical News
Cause of Infantile Amnesia Revealed: New Neuron Formation Could Increase Capacity for New Learning, at Expense of Old Memories
New research presented today shows that formation of new neurons in the hippocampus -- a brain region known for its importance in learning and remembering -- could cause forgetting of old memories by causing a reorganization of existing brain ... > full story
Top Technology News
New Filtration Material Could Make Petroleum Refining Cheaper, More Efficient
A newly synthesized material might provide a dramatically improved method for separating the highest-octane components of ... > full story
Top Environment News
King Richard III Found in 'Untidy Lozenge-Shaped Grave'
A new article on the archaeology of the Search for Richard III reveals for the first time specific details of the grave dug for King Richard III and discovered under a car park in ... > full story
- Serengeti Road Divides Biologists: Will a Road Across the Northern Tier of Serengeti National Park Ruin It?
- Tomatoes: The World's Favorite Fruit, Only Better-Tasting and Longer-Lasting
- Reforestation Study Shows Trade-Offs Between Water, Carbon and Timber
- New Target to Boost Plant Resistance to Insects and Pathogens Identified
- more top environment stories
More Science Headlines
Updated 1 hour 15 minutes ago | Next update in 1 hour 45 minutes
11 am EDT Edition
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11 am EDT
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Scientists Make Breast Cancer Advance That Turns Previous Thinking on Its Head
May 23, 2013 — Scientists have made an advance in breast cancer research which shows how some enzymes released by cancerous cells could have a protective ... > full story -
Research Identifies a Way to Make Cancer Cells More Responsive to Chemotherapy
May 23, 2013 — Breast cancer characterized as "triple negative" carries a poor prognosis, with limited treatment options. In some cases, chemotherapy doesn't kill the cancer cells the way it's supposed to. New research explains why some cancer cells don't respond ... > full story -
New Discovery in Fight Against Deadly Meningococcal Disease: Understanding the Pathway of How the Bacterium Colonizes People
May 23, 2013 — Neisseria meningitidis is an important human pathogen that can cause rapidly progressing, life threatening meningitis and meningococcal sepsis in humans, according to authors of a new study. People can be carriers of the bug and not get any ... > full story -
Technique to Detect Breast Cancer in Urine Developed
May 23, 2013 — Medical researchers have developed a new screening method that uses urinalysis to diagnose breast cancer – and determine its severity – before it could be detected with a ... > full story -
Noninvasive Detection, Diagnosis of Oral Cancer
May 23, 2013 — More effective detection and diagnosis of oral cancer could result from an advance in noninvasive imaging of epithelial tissue. The research is thought to have the potential to change the way doctors look for precancerous and cancerous areas in a ... > full story
8 am EDT
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Vaccine Blackjack: IL-21 Critical to Fight Against Viral Infections
May 23, 2013 — Scientists have shown that an immune regulatory molecule called IL-21 is needed for long-lasting antibody responses in mice against viral ... > full story -
Discarded Immune Cells Induce the Relocation of Stem Cells
May 23, 2013 — The study reveals a surprising coordination between two fundamental body systems, the immune and the hematopoietic. The study has implications for the understanding of metastasis, because malignant stem cells involved in tumor formation could take ... > full story -
Powerful New Method IDs Therapeutic Antibodies
May 23, 2013 — Scientists have devised a powerful new technique for finding antibodies that have a desired biological effect. The newly reported technique should greatly speed the process of discovering medicines, diagnostics and laboratory ... > full story -
Schools Should Provide Students With Daily Physical Activity, Experts Say
May 23, 2013 — A new report from the Institute of Medicine says schools should be responsible for helping pupils engage in at least 60 minutes of vigorous or moderate intensity activity during each school ... > full story -
Genomic Analysis Lends Insight to Prostate Cancer
May 23, 2013 — Researchers have used next generation genomic analysis to determine that some of the more aggressive prostate cancer tumors have similar genetic origins, which may help in predicting cancer ... > full story
5 am EDT
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When Oxygen Is Short, EGFR Prevents Maturation of Cancer-Fighting miRNAs
May 23, 2013 — Even while being dragged to its destruction inside a cell, a cancer-promoting growth factor receptor fires away, sending signals that thwart the development of tumor-suppressing microRNAs before it's dissolved, researchers have ... > full story -
Scientists Discover How Rapamycin Slows Cell Growth
May 23, 2013 — University of Montreal researchers have discovered a novel molecular mechanism that can potentially slow the progression of some cancers and other diseases of abnormal growth. In the May 23 edition of the prestigious journal Cell, scientists have ... > full story -
Cinnamon Compound Has Potential Ability to Prevent Alzheimer's
May 23, 2013 — Cinnamon: Can the red-brown spice with the unmistakable fragrance and variety of uses offer an important benefit? The common baking spice might hold the key to delaying the onset of -- or warding off -- the effects of Alzheimer's ... > full story -
New Screening Approach Uncovers Potential Alternative Drug Therapies for Neuroblastoma
May 23, 2013 — Nearly two-thirds of patients with high-risk neuroblastoma -- a common tumor that forms in the nerve cells of children -- cannot be cured using tumor-killing cancer drugs. A new study reveals a new genomic approach to screen for compounds that ... > full story -
Alzheimer's Research; Alzheimer's; Dementia; Diseases and Conditions; Personalized Medicine; Healthy Aging;
Multiple Research Teams Unable to Confirm High-Profile Alzheimer's Study
May 23, 2013 — Teams of highly respected Alzheimer’s researchers failed to replicate what appeared to be breakthrough results for the treatment of this brain disease when they were published last year in the journal ... > full story
2 am EDT
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Ferrets, Pigs Susceptible to H7N9 Avian Influenza Virus
May 23, 2013 — Chinese and US scientists have used a virus isolated from a person who died from H7N9 avian influenza infection to determine whether the virus could infect and be transmitted between ferrets. Ferrets are often used as a mammalian model in influenza ... > full story -
Regenerating Spinal Cord Fibers May Be Treatment for Stroke-Related Disabilities
May 23, 2013 — A new study finds "substantial evidence" that a regenerative process involving damaged nerve fibers in the spinal cord could hold the key to better functional recovery by most stroke victims. The findings may offer new hope to those who suffer ... > full story -
First Successful Treatment of Pediatric Cerebral Palsy With Autologous Cord Blood: Awoken from a Persistent Vegetative State
May 23, 2013 — Medics have succeeded in treating cerebral palsy with autologous cord blood. Following a cardiac arrest with severe brain damage, a two-and-a-half year old boy had been in a persistent vegetative state -- with minimal chances of survival. Just two ... > full story -
Chemists Find New Compounds to Curb Staph Infection
May 23, 2013 — In an age when microbial pathogens are growing increasingly resistant to the conventional antibiotics used to tamp down infection, scientists have synthesized a potent new class of compounds capable of curbing the bacteria that cause staph ... > full story -
Pay Attention: How We Focus and Concentrate
May 23, 2013 — Scientists have shed new light on how the brain tunes in to relevant ... > full story
11 pm EDT
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Spheres Can Form Squares
May 23, 2013 — Everybody who has tried to stack oranges in a box knows that a regular packing of spheres in a flat layer naturally leads to a hexagonal pattern, where each sphere is surrounded by six neighbours in a honeycomb-like fashion. Researchers now report ... > full story -
Quest for Quantum Computing Advanced
May 23, 2013 — Scientistst investigating the properties of ultra-thin films of new materials are helping bring quantum computing one step closer to ... > full story -
Key Find for Early Bladder Cancer Treatment
May 23, 2013 — Aggressive forms of bladder cancer involve the protein PODXL – a discovery that could hold the key to improved treatment, according to new ... > full story -
Spectacular Stellar Nursery: ESO's Very Large Telescope Celebrates 15 Years of Success
May 23, 2013 — With this new view of a spectacular stellar nursery ESO is celebrating 15 years of the Very Large Telescope — the world's most advanced optical instrument. This picture reveals thick clumps of dust silhouetted against the pink glowing gas ... > full story -
How Do Cold Ions Slide?
May 23, 2013 — Things not always run smoothly. It may happen, actually, that when an object slides on another, the advancement may occur through a ‘stop and go’ series in the characteristic manner which scientists call “stick-slip”, a ... > full story
8 pm EDT
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Biochemistry: Unspooling DNA from Nucleosomal Disks
May 23, 2013 — The tight wrapping of genomic DNA around nucleosomes in the cell nucleus makes it unavailable for gene expression. This study describes a mechanism that allows chromosomal DNA to be locally displaced from nucleosomes for ... > full story -
Boosting Body's Natural Flu Killers as Way to Offset Virus Mutation Problem
May 23, 2013 — The known difficulty in fighting influenza (flu) is the ability of the flu viruses to mutate and thus evade various medications that were previously found to be effective. Researchers at the Hebrew University of Jerusalem have shown recently that ... > full story -
Huntington's Disease; Disorders and Syndromes; Depression; Chronic Illness; Mental Health Research; Psychology Research;
Breakthrough on Huntington's Disease
May 23, 2013 — Researchers have succeeded in preventing very early symptoms of Huntington’s disease, depression and anxiety, by deactivating the mutated huntingtin protein in the brains of ... > full story -
What the Smallest Infectious Agents Reveal About Evolution
May 23, 2013 — Radically different viruses share genes and are likely to share ancestry, according to new research. The comprehensive phylogenomic analysis compares giant viruses that infect amoeba with tiny viruses known as virophages and to several groups of ... > full story -
Gender Difference; Educational Psychology; Child Development; Child Psychology; Educational Policy; ADD and ADHD;
'Boys Will Be Boys' in U.S., but Not in Asia
May 22, 2013 — A new study shows there is a gender gap when it comes to behavior and self-control in American young children -- one that does not appear to exist in children in ... > full story
5 pm EDT
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Swine Flu Pandemic of 2009 More Deadly for Younger Adults
May 22, 2013 — As the world prepares for what may be the next pandemic strain of influenza virus, in the H7N9 bird flu, a new study reveals that the 2009 H1N1 swine flu pandemic was deadliest for people under the age of 65, while those 65 and over had greater ... > full story -
Fetch, Boy! Study Shows Homes With Dogs Have More Types of Bacteria
May 22, 2013 — New research shows that households with dogs are home to more types of bacteria -- including bacteria that are rarely found in households that do not have dogs. The finding is part of a larger study to improve our understanding of the microscopic ... > full story -
New Cave-Dwelling Arachnids Discovered in Brazil
May 22, 2013 — Two new species of cave-dwelling short-tailed whipscorpions have been discovered in northeastern Brazil, and are described in new ... > full story -
Captive-Bred Wallabies May Carry Antibiotic Resistant Bacteria Into Wild Populations
May 22, 2013 — Endangered brush-tail rock wallabies raised in captive breeding programs carry antibiotic resistance genes in their gut bacteria and may be able to transmit these genes into wild populations, according to new ... > full story -
Scientists Develop Worm EEG to Test the Effects of Drugs
May 22, 2013 — Scientists have developed a device which records the brain activity of worms to help test the effects of drugs. NeuroChip is a microfluidic electrophysiological device, which can trap the microscopic worm Caenorhadbitis elegans and record the ... > full story
2 pm EDT
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CT Detects Twice as Many Lung Cancers as X-Ray
May 22, 2013 — CT scans detected twice as many early-stage lung cancers as chest X-ray on initial screening exam, according to new results. Investigators say the 20 percent lung cancer mortality reduction previously reported in the NLST is achievable at screening ... > full story -
Thinking 'Big' May Not Be Best Approach to Saving Large-River Fish
May 22, 2013 — Large-river specialist fishes -- from giant species like paddlefish and blue catfish, to tiny crystal darters and silver chub -- are in danger, but researchers say there is greater hope to save them if major tributaries become a focus of ... > full story -
Pinpointing How Nature's Benefits Link to Human Well-Being
May 22, 2013 — What people take from nature -- water, food, timber, inspiration, relaxation -- are so abundant, it seems self-evident. Until you try to quantitatively understand how and to what extent they contribute to ... > full story -
Slowing the Aging Process -- Only With Antibiotics
May 22, 2013 — Scientists reveal the mechanism responsible for aging hidden deep within mitochondria -- and dramatically slow it down in worms by administering antibiotics to the ... > full story -
Making Chaos Visible: As Chaos Celebrates Its 50th Birthday, Biophysicist Christian Herbst Develops a New Method to Visualize It
May 22, 2013 — Exactly 50 years after the US-American meteorologist Edward Lorenz discovered chaos (remember the "butterfly effect?") the topic is still as fascinating as ever. A new visualization technique helps to make chaos visible to the naked eye. The method ... > full story
Health & Biomedical Sciences
Health & Medicine
Hormone Replacement Therapy: British Menopause Society and Women's Health Concern Release Updated Guidelines
The British Menopause Society and Women's Health Concern have released updated guidelines on Hormone Replacement Therapy (HRT) to provide clarity around the role of HRT, the benefits and the risks. The new guidelines appear in the society's flagship ... > full story
- New Recommendations for Management of High Blood Glucose in Hospitalized Patients
- Frequent Heartburn May Predict Cancers of the Throat and Vocal Cord
- Common Childhood Asthma Not Rooted in Allergens, Inflammation
- Novel Approach for Influenza Vaccination Shows Promise in Early Animal Testing
- more stories
Mind & Brain
Networks of Neurons in Brain Are Disrupted in Psychiatric Disease
Studying the networks of connections in the brains of people affected by schizophrenia, bipolar disease or depression has allowed researchers to gain a better understanding of the biological basis of these important diseases. They have shown that ... > full story
Living Well
Young Children Who Miss Well-Child Visits Are More Likely to Be Hospitalized
Young children who missed more than half of recommended well-child visits had up to twice the risk of hospitalization compared to children who attended most of their visits, according to a new ... > full story
- More Than One in Five Parents Believe They Have Little Influence in Preventing Teens from Using Illicit Substances
- Study Challenges Notion That Umpires Call More Strikes for Pitchers of Same Race
- Weekends Are the Best Time to Buy Airline Tickets, Study Finds
- Laws to Lower Alcohol Limits Mean Lower Fatalities Says Trauma Expert
- more stories
Biological & Earth Sciences
Plants & Animals
Mosquito Behavior May Be Immune Response, Not Parasite Manipulation
Malaria-carrying mosquitoes appear to be manipulated by the parasites they carry, but this manipulation may simply be part of the mosquitoes' immune response, according to ... > full story
Earth & Climate
Expedition to Study Ancient Continental Breakup West of Spain
An international team of scientists has embarked on a shipboard expedition to study how the Earth's crust was pulled apart in an area beneath the Atlantic Ocean off the coast of ... > full story
Fossils & Ruins
Small, Speedy Plant-Eater Extends Knowledge of Dinosaur Ecosystems
Dinosaurs are often thought of as large, fierce animals, but new research highlights a previously overlooked diversity of small dinosaurs. Paleontologists have now described a new dinosaur, the smallest plant-eating dinosaur species known from ... > full story
- New Archaeological 'High Definition' Sourcing Sharpens Understanding of the Past
- Allosaurus Fed More Like a Falcon Than a Crocodile: Engineering, Anatomy Work Reveals Differences in Dinosaur Feeding Styles
- Origins of Human Culture Linked to Rapid Climate Change
- Fourteen Closely Related Crocodiles Existed Around 5 Million Years Ago
- more stories
Physical & Applied Sciences
Space & Time
Magnetic Field Misbehavior in Solar Flares Explained: The Culprit Is Turbulence
When a solar flare erupts from the sun, its magnetic fields sometime break a widely accepted rule of physics. Why? Now we ... > full story
Matter & Energy
Supersonic Laminar Flow Tests Continue on NASA's F-15B
NASA Dryden Flight Research Center's F-15B Research Testbed aircraft has been busy this spring, flying an experimental test fixture in partnership with Aerion Corporation of Reno, ... > full story
Computers & Math
Innovation Could Bring Flexible Solar Cells, Transistors, Displays
Researchers have created a new type of transparent electrode that might find uses in solar cells, flexible displays for computers and consumer electronics and future "optoelectronic" circuits for sensors and information ... > full story
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