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Ancient Seagrass Holds Secrets of the Oldest Living Organism on Earth
It's big, it's old and it lives
under the sea -- and now an
international research
collaboration has confirmed that
an ancient seagrass holds the
secrets of the oldest living
organism on Earth. Ancient giant
... > full story
- more on:
Mars Express Radar Yields Strong Evidence of Ocean That Once Covered Part of Red Planet
ESA's Mars Express has returned
strong evidence for an ocean once
covering part of Mars. Using
radar, it has detected sediments
reminiscent of an ocean floor
within the boundaries of
... > full story
- more on:
Why Bad Immunity Genes Survive: Study Implicates Arms Race Between Genes and Germs
Biologists have found new evidence
for why mice, people and other
vertebrate animals carry thousands
of varieties of genes to make
immune-system proteins named MHCs
-- even though some of those genes
... > full story
- more on:
Researchers Uncover a Mechanism to Explain Dune Field Patterns
In a study of the harsh but
beautiful White Sands National
Monument in New Mexico,
researchers have uncovered a
unifying mechanism to explain dune
patterns. The new work represents
a contribution to basic science,
... > full story
- more on:
Fossil Cricket Reveals Jurassic Love Song
The love song of an extinct
cricket that lived 165 million
years ago has been brought back to
life by scientists. The song
– possibly the most ancient
known musical song documented to
date – was reconstructed
from microscopic wing features on
... > full story
- more on:
Exercise Triggers Stem Cells in Muscle
Researchers have determined that
an adult stem cell present in
muscle is responsive to exercise,
a discovery that may provide a
link between exercise and muscle
health. The findings could lead to
new therapeutic techniques using
these cells to rehabilitate
... > full story
- more on:
Engineers Weld Nanowires With Light
At the nano level, researchers
have discovered a new way to weld
together meshes of tiny wires.
Their work could lead to exciting
new electronics and solar
applications. To succeed, they
called upon plasmonics. ... > full story
- more on:
Why Do Cells Age? Discovery of Extremely Long-Lived Proteins May Provide Insight Into Cell Aging and Neurodegenerative Diseases
One of the big mysteries in
biology is why cells age. Now
scientists report that they have
discovered a weakness in a
component of brain cells that may
explain how the aging process
... > full story
- more on:
Placebos and Distraction: New Study Shows How to Boost the Power of Pain Relief, Without Drugs
Placebos reduce pain by creating
an expectation of relief.
Distraction -- say, doing a puzzle
-- relieves it by keeping the
brain busy. But do they use the
same brain processes? Neuromaging
... > full story
- more on:
Preference for Fatty Foods May Have Genetic Roots
A preference for fatty foods has a
genetic basis, according to
researchers, who discovered that
people with certain forms of the
CD36 gene may like high-fat foods
more than those who have other
forms of this gene. ... > full story
- more on:
Roll over headlines to view top news summaries:
- Ancient Seagrass: World’s Oldest Living Thing
- Ocean Once Covered Part of Mars
- Why Bad Immunity Genes Survive
- Patterns in Sand Dunes Explained
- Fossil Cricket Reveals Jurassic Love Song
- Exercise Triggers Stem Cells in Muscle
- Engineers Weld Nanowires With Light
- Why Do Cells Age? Extremely Long-Lived Proteins
- Placebos and Distraction: Boosting Pain Relief
- Fatty Food Preference May Have Genetic Roots
- more top science stories
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Top Medical News
Metabolic 'Breathalyzer' Reveals Early Signs of Disease
The future of disease diagnosis may lie in a “breathalyzer”-like technology currently under ... > full story
Top Technology News
Playing RFID Tag With Sheets of Paper
Researchers in France have developed a way to deposit a thin aluminum RFID tag onto paper that not only reduces the amount of metal needed for the tag, and so the cost, but could open up RFID tagging to many more systems, even allowing a single ... > full story
- To Make a Social Robot, Key Is Satisfying the Human Mind
- Classic Portrait of a Barred Spiral Galaxy
- Surface of Mars an Unlikely Place for Life After 600-Million-Year Drought, Say Scientists
- Unraveling a Butterfly's Aerial Antics Could Help Builders of Bug-Size Flying Robots
- more top technology stories
Top Environment News
Americans' Knowledge of Polar Regions Up, but Not Their Concern
Americans’ knowledge of facts about the polar regions of the globe has increased since 2006, but this increase in knowledge has not translated into more concern about changing polar environments, according to new ... > full story
- Low-Cost Instrument Developed by High School Students Could Aid Severe Weather Research
- New Stinky Flower: Our Amorphophallus Is Smaller, but It Stinks Like Its Big Cousin
- Why Common Tree Is Toxic to Snowshoe Hares
- More Environmental Rules Needed for Shale Gas, Says Geophysicist
- more top environment stories
More Science Headlines
Updated 2 hours 30 minutes ago | Next update in 30 minutes
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8 pm EST
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Satellite Tracking Reveals Sea Turtle Feeding Hotspots
February 6, 2012 — Satellite tracking of threatened loggerhead sea turtles has revealed two previously unknown feeding "hotspots" in the Gulf of Mexico that are providing important habitat for at least three separate populations of the ... > full story -
Researchers Examine Consequences of Non-Intervention for Infectious Disease in African Great Apes
February 6, 2012 — Infectious disease has joined poaching and habitat loss as a major threat to the survival of African great apes as they have become restricted to ever-smaller populations. Despite the work of dedicated conservationists, efforts to save our closest ... > full story -
Why People Can Hold Visual Information in Great Detail in Their Working Memory
February 6, 2012 — A new study may explain why people can hold visual information in great detail in their working ... > full story -
Raw Milk Is a Dangerous Raw Deal for Farmers and Consumers, Experts Say
February 6, 2012 — Researchers and experts on food safety have commented on the danger presented to farmers and consumers by the raw milk ... > full story -
Key Finding in Stem Cell Self-Renewal
February 6, 2012 — Scientists have proposed a mechanism for the control of whether embryonic stem cells continue to proliferate and stay stem cells, or differentiate into adult cells like brain, liver or skin. The work has implications in two areas. In cancer ... > full story
5 pm EST
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New Species of Bamboo-Feeding Plant Lice Found in Costa Rica
February 6, 2012 — Several periods of field work during 2008 have led to the discovery of a new species of bamboo-feeding plant lice in Costa Rica's high-altitude region Cerro de la Muerte. The discovery was made thanks to molecular data analysis of mitochondrial DNA. ... > full story -
Strategy Shift With Age Can Lead to Navigational Difficulties
February 6, 2012 — A researcher believes studying people's ability to find their way around may help explain why loss of mental capacity occurs with ... > full story -
Children's Health; Child Psychology; Child Development; Infant's Health; Educational Psychology; Public Health;
Children Hospitalized at Alarming Rate Due to Abuse, U.S. Study Finds
February 6, 2012 — In one year alone, over 4,500 children in the United States were hospitalized due to child abuse, and 300 of them died of their injuries, researchers report in a new ... > full story -
Positive Parenting During Early Childhood May Prevent Obesity
February 6, 2012 — Programs that support parents during their child’s early years hold promise for obesity prevention, according to a new ... > full story -
Today's Healthcare; Wounds and Healing; Medical Imaging; Health Policy; Birth Control; Diseases and Conditions;
Did Your Surgeons Miss Something? New System to Prevent Retained Surgical Items
February 6, 2012 — It may sound like something from a TV medical drama, but the incidence of surgeons leaving something behind in the body is very real at hospitals across the country. But researchers have now created a new system using state-of-the-art technologies ... > full story
2 pm EST
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Key to Immune Cell's 'Internal Guidance' System Discovered
February 5, 2012 — Researchers have discovered the molecular pathway that enables receptors inside immune cells to find, and flag, fragments of pathogens trying to invade a host. The discovery of the role played by the molecule CD74 could help immunologists ... > full story -
Genetic Variant Increases Risk of Common Type Stroke
February 5, 2012 — A genetic variant that increases the risk of a common type of stroke has been identified by scientists. This is one of the few genetic variants to date to be associated with risk of stroke and the discovery opens up new possibilities for ... > full story -
Early Study Suggests Nanodiamonds Safe for Implants
February 5, 2012 — As the number of knee and hip joint replacements grows, nanodiamond coatings could answer problems related to metal ... > full story -
Hearing Metaphors Activates Brain Regions Involved in Sensory Experience
February 3, 2012 — New brain imaging research reveals that a region of the brain important for sensing texture through touch, the parietal operculum, is also activated when someone listens to a sentence with a textural metaphor. The same region is not activated when a ... > full story -
Diseases and Conditions; Human Biology; Personalized Medicine; Genes; Birth Defects; Sickle Cell Anemia;
Whole Exome Sequencing Identifies Cause of Metabolic Disease
February 3, 2012 — Sequencing a patient's entire genome to discover the source of his or her disease is not routine, but geneticists are getting close. A case report shows how researchers can combine a simple blood test with an "executive summary" scan of the genome ... > full story
11 am EST
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The Complex Relationship Between Memory and Silence
February 3, 2012 — People who suffer a traumatic experience often don't talk about it, and many forget it over time. But not talking about something doesn't always mean you'll forget it; if you try to force yourself not to think about white bears, soon you'll be ... > full story -
Warfarin and Aspirin Are Similar in Heart Failure Treatment, Study Suggests
February 3, 2012 — In the largest and longest head-to-head comparison of two anti-clotting medications, warfarin and aspirin were similar in preventing deaths and strokes in heart failure patients with normal heart rhythm, according to new ... > full story -
Coughing and Other Respiratory Symptoms Improve Within Weeks of Smoking Cessation
February 3, 2012 — If the proven long-term benefits of smoking cessation are not enough to motivate young adults to stop smoking, a new study shows that 18- to 24-year olds who stop smoking for at least two weeks report substantially fewer respiratory symptoms, ... > full story -
Global Extinction: Gradual Doom Is Just as Bad as Abrupt
February 3, 2012 — Around 250 million years ago, most life on Earth was wiped out in an extinction known as the "Great Dying." Geologists have learned that the end came slowly from thousands of centuries of volcanic ... > full story -
A Battle of the Vampires, 20 Million Years Ago?
February 3, 2012 — They are tiny, ugly, disease-carrying little blood-suckers that most people have never seen or heard of, but a new discovery in a one-of-a-kind fossil shows that "bat flies" have been doing their noxious business with bats for at least 20 million ... > full story
8 am EST
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New Procedure Repairs Severed Nerves in Minutes, Restoring Limb Use in Days or Weeks
February 3, 2012 — Scientists believe a new procedure to repair severed nerves could result in patients recovering in days or weeks, rather than months or years. The team used a cellular mechanism similar to that used by many invertebrates to repair damage to nerve ... > full story -
Schizophrenia; Spirituality; Today's Healthcare; Language Acquisition; Disorders and Syndromes; Perception;
Schizophrenia: When Hallucinatory Voices Suppress Real Ones, New Electronic Application May Help
February 3, 2012 — When a patient afflicted with schizophrenia hears inner voices something is taking place inside the brain that prevents the individual from perceiving real voices. A simple electronic application may help the patient learn to shift ... > full story -
Collective Action: Occupied Genetic Switches Hold Clues to Cells' History
February 3, 2012 — If you wanted to draw your family tree, you could start by searching for people who share your surname. Cells, of course, don’t have surnames, but scientists have found that genetic switches called enhancers, and the molecules that activate ... > full story -
Using Immune Cells from Healthy People to Fight Cancer
February 3, 2012 — Immune cells from healthy individuals can be the new immune cure for cancer. This treatment can kill cancer cells without destroying neighboring cells. The hope is to eradicate cancer for ... > full story -
Parasites or Not? Transposable Elements in DNA of Fruit Flies May Be Beneficial
February 3, 2012 — Many living organisms suffer from parasites, which use the hosts’ resources for their own purposes. The problem of parasitism occurs at all levels right down to the DNA scale. Genomes may contain up to 80% “foreign” DNA but details ... > full story
5 am EST
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Breastfeeding Linked to Improved Lung Function at School-Age, Especially With Asthmatic Mothers
February 3, 2012 — Breastfeeding is associated with improved lung function at school age, particularly in children of asthmatic mothers, according to a new ... > full story -
Holding Back Immunity: 'Gatekeeper' Protein Key to Helping Immune Cells to Sound Warning
February 3, 2012 — A 'gatekeeper' protein plays a critical role in helping immune cells to sound a warning after encountering signs of tumor growth or infection, researchers ... > full story -
New 'Biopsy in a Blood Test' to Detect Cancer
February 2, 2012 — Scientists and cancer physicians have successfully demonstrated the effectiveness of an advanced blood test for detecting and analyzing circulating tumor cells -- breakaway cells from patients' solid tumors -- from cancer patients. The findings show ... > full story -
Malaria; Infectious Diseases; Health Policy; Children's Health; Diseases and Conditions; Healthy Aging;
Malaria Kills Nearly Twice as Many People Than Previously Thought, but Deaths Declining Rapidly
February 2, 2012 — Malaria is killing more people worldwide than previously thought -- 1.2 million -- but the number of deaths has fallen rapidly as efforts to combat the disease have ramped up, according to new research. Researchers say that deaths from malaria have ... > full story -
How to Tell Apart the Forgetful from Those at Risk of Alzheimer’s Disease
February 2, 2012 — It can be difficult to distinguish between people with normal age-associated memory loss and those with amnestic mild cognitive impairment (aMCI). However people with aMCI are at a greater risk of developing Alzheimer’s disease (AD), and ... > full story
2 am EST
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Football Findings Suggest Concussions Caused by Series of Hits
February 2, 2012 — A two-year study of high school football players suggests that concussions are likely caused by many hits over time and not from a single blow to the head, as commonly ... > full story -
Scientists Coax Shy Microorganisms to Stand out in a Crowd
February 2, 2012 — Scientists have advanced a method that allowed them to single out a marine microorganism and map its genome even though the organism made up less than 10 percent of a water sample teeming with many millions of individuals from dozens of identifiable ... > full story -
Google Earth Ocean Terrain Receives Major Update: Data Sharpen Resolution of Seafloor Maps, Correct 'Discovery' of Atlantis
February 2, 2012 — Internet information giant Google updated ocean data in its Google Earth application this week, reflecting new bathymetry data assembled by researchers from around the world. The newest version of Google Earth includes more accurate imagery in ... > full story -
Triglyceride Levels Predict Stroke Risk in Postmenopausal Women
February 2, 2012 — The traditional risk factors for stroke – such as high cholesterol – are not as accurate at predicting risk in postmenopausal women as previously thought. Instead, researchers say doctors should refocus their attention on triglyceride ... > full story -
New Technique Successfully Dissolves Blood Clots in Brain and Lowers Risk of Brain Damage After Stroke, Study Suggests
February 2, 2012 — Neurologists report success with a new means of getting rid of potentially lethal blood clots in the brain safely without cutting through easily damaged brain tissue or removing large pieces of ... > full story
11 pm EST
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Untangling the Mysteries of Alzheimer's
February 2, 2012 — Researchers have found new evidence that confirms the significance of a protein that neuroscientists call tau to the development of Alzheimer's disease. While earlier studies have focused on tau's aggregation into twisted structures known as ... > full story -
Down Syndrome; Birth Defects; Pregnancy and Childbirth; Infant's Health; Personalized Medicine; Women's Health;
DNA Test That Identifies Down Syndrome in Pregnancy Can Also Detect Trisomy 18 and Trisomy 13
February 2, 2012 — A recent study shows that a new DNA test that identifies Down syndrome in pregnancy can also detect trisomies 18 and ... > full story -
Elevated Glucose Associated With Undetected Heart Damage
February 2, 2012 — A new study suggests that hyperglycemia injures the heart, even in patients without a history of heart disease or diabetes. The high-sensitivity test they used detected levels of cTnT tenfold lower than those found in patients diagnosed with a heart ... > full story -
New Way to Study Ground Fractures
February 2, 2012 — Geophysics researchers have created a new way to study fractures by producing elastic waves, or vibrations, through using high-intensity light focused directly on the fracture ... > full story -
Millisecond Pulsar Paradox: Stellar Astrophysics Helps Explain Behavior of Fast Rotating Neutron Stars in Binary Systems
February 2, 2012 — Pulsars are among the most exotic celestial bodies known. They have diameters of about 20 kilometers, but at the same time roughly the mass of our sun. A sugar-cube sized piece of its ultra-compact matter on Earth would weigh hundreds of millions of ... > full story
Health & Biomedical Sciences
Health & Medicine
Gene Mutation Discovery Sparks Hope for Effective Endometriosis Screening
Researchers have, for the first time, described the genetic basis of endometriosis, a condition affecting millions of women that is marked by chronic pelvic pain and infertility. The researchers' discovery of a new gene mutation provides hope for ... > full story
- Three 'Targeted' Cancer Drugs Raise Risk of Fatal Side Effects
- Low Levels of Lipid Antibodies Increase Complications Following Heart Attack
- Regular Use of Vitamin and Mineral Supplements Could Reduce the Risk of Colon Cancer, Study Suggests
- New Device Performs Better Than Old for Removing Blood Clots, Research Shows
- more stories
Mind & Brain
Rare Mutations May Help Explain Aneurysm in High-Risk Families
An innovative approach to genome screening has provided clues about rare mutations that may make people susceptible to brain aneurysms, predisposing them to brain bleeds, according to preliminary ... > full story
- New Drug Doesn't Improve Disability Among Stroke Patients, Researchers Find
- Clopidogrel With Aspirin Doesn't Prevent More Small Strokes, May Increase Risk of Bleeding and Death, Researchers Report
- Gene Regulator in Brain's Executive Hub Tracked Across Lifespan
- Male and Female Behavior Deconstructed
- more stories
Living Well
U.S. Counties With Thriving Small Businesses Have Healthier Residents
U.S. counties and parishes with a greater concentration of small, locally-owned businesses have healthier populations — with lower rates of mortality, obesity and diabetes — than do those that rely on large companies with ... > full story
- Scientists Show Positive Effects of Affirmative Action Policies Promoting Women
- Probable Mechanism Underlying Resveratrol Activity Uncovered: Chemical Found in Red Wine and Other Foods
- Men Behaving Nicely: Selfless Acts by Men Increase When Attractive Women Are Nearby
- Eating Together? Simply a Matter of Adapting
- more stories
Biological & Earth Sciences
Plants & Animals
Food Poisoning: Understanding How Bacteria Come Back from the 'Dead'
Salmonella remains a serious cause of food poisoning, in part due to its ability to thrive and quickly adapt to the different environments in which it can grow. New research has taken a detailed look at what Salmonella does when it enters a new ... > full story
- Coffee Consumption Reduces Fibrosis Risk in Those With Fatty Liver Disease, Study Suggests
- Zap of Cold Plasma Reduces Harmful Bacteria on Raw Chicken
- Rearranging the Cell's Skeleton: Small Molecules at the Cell’s Membrane Enable Cell Movement
- Prolific Plant Hunters Provide Insight in Strategy for Collecting Undiscovered Plant Species
- more stories
Earth & Climate
'Yellow Biotechnology': Using Plants to Silence Insect Genes in a High-Throughput Manner
'Yellow biotechnology' refers to biotechnology with insects -- analogous to the green (plants) and red (animals) biotechnology. Active ingredients or genes in insects are characterized and used for research or application in agriculture and ... > full story
Fossils & Ruins
First Plants Caused Ice Ages, New Research Reveals
New research reveals how the arrival of the first plants 470 million years ago triggered a series of ice ages. The research reveals the effects that the first land plants had on the climate during the Ordovician Period, which ended 444 million years ... > full story
Physical & Applied Sciences
Space & Time
High-Precision Map of Milky Way's Magnetic Fields Charted
Scientists have pooled their radio observations into a database, producing the highest precision map to date of the magnetic field within our own Milky Way ... > full story
Matter & Energy
NASA's Juno Spacecraft Refines Its Path to Jupiter
NASA's solar-powered Juno spacecraft successfully refined its flight path Feb. 1 with the mission's first trajectory correction maneuver. The maneuver is the first of a dozen planned rocket firings that, over the next five years, will keep Juno on ... > full story
Computers & Math
Judder-Free Videos on the Smartphone
Overloaded cellular networks can get annoying – especially when you want to watch a video on your smartphone. An optimized Radio Resource Manager will soon be able to help network operators accommodate heavy network ... > full story
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