March 8, 2013

0 Comments

Hubble Confirms HD 140283 as the Oldest Known Star

Hubble Views the Oldest Star HD 140283

Using NASA’s Hubble Space Telescope, astronomers have found that HD 140283 is the oldest known star with a well-determined age, forming soon after the Big Bang. A team of astronomers using NASA’s Hubble Space Telescope has taken an important step closer to finding the birth certificate of a star that’s been around for a very […]

Continue reading...

March 7, 2013

1 Comment

Stressed VWF Proteins Can Cause Blood Clots

Stressed Proteins Can Cause Blood Clots

Focusing on a protein called von Willebrand factor (VWF), a team of scientists discovered how stresses of blood flow in small blood vessels of the brain and heart could cause changes to the shape of VWF and form blood clots. New research from Rice University, Baylor College of Medicine (BCM) and the Puget Sound Blood […]

Continue reading...

March 7, 2013

0 Comments

New Imaging Method Detects Alzheimer’s Risk Years before the Disease Strikes

Researchers Find Signs of Alzheimers Decades before Illness Strikes

Using a new imaging method that screens the brain’s connections, UCLA scientists have discovered a common abnormality in our genetic code that increases the risk of Alzheimer’s years before the disease strikes. Scientists at UCLA have discovered a new genetic risk factor for Alzheimer’s disease by screening people’s DNA and then using an advanced type […]

Continue reading...

March 7, 2013

0 Comments

Suppressing NgR1 Returns Brain to Adolescent Levels of Plasticity

A Molecular Switch Makes an Old Brain Young

By suppressing the Nogo Receptor 1 gene (NgR1) in older mice, scientists at Yale University have reset their brain to adolescent levels of plasticity, recreating a youthful brain that enables both learning and healing. The flip of a single molecular switch helps create the mature neuronal connections that allow the brain to bridge the gap […]

Continue reading...

March 7, 2013

0 Comments

Geneticists Discover the Oldest Known Genetic Branch of the Human Y Chromosome

Human Y Chromosome Much Older Than Previously Thought

Geneticists at the University of Arizona have discovered an African American Y chromosome with lineage that diverged from previously known Y chromosomes about 338,000 ago, pushing back the time the last common Y chromosome ancestor lived by almost 70 percent. UA geneticists have discovered the oldest known genetic branch of the human Y chromosome – […]

Continue reading...

March 7, 2013

0 Comments

Chandra Data Helps Detail the Interior Structure of Neutron Stars

Data from Chandra Helps Detail the Interior Structure of Neutron Stars

Using data from Chandra, ESA’s XMM-Newton, and NASA’s Rossi X-ray Timing Explorer, scientists made one of the most reliable estimates of the relation between the radius of a neutron star and its mass, furthering their understanding about the interior structure of neutron stars. Neutron stars, the ultra-dense cores left behind after massive stars collapse, contain […]

Continue reading...

March 7, 2013

0 Comments

Distance to the Large Magellanic Cloud Recalculated, Improves Hubble Constant

Distance to Large Magellanic Cloud Measured

By observing a rare close pairs of stars, known as eclipsing binaries, a team of scientists recalculated the distance to the Large Magellanic Cloud, refining the uncertainty in the distance to the LMC down to 2.2 percent and decreasing the uncertainty in calculations of the Hubble constant to 3 percent. Pasadena, California — A team […]

Continue reading...

March 6, 2013

0 Comments

How Jupiter and Saturn Formed and Evolved

The Possible Origins of Jupiter and Saturn

In newly published research from the Carnegie Institution for Science, Alan Boss uses highly detailed, three dimensional models to help explain how the gas giant planets Jupiter and Saturn may have formed and evolved. Washington, D.C. — New theoretical modeling by Carnegie’s Alan Boss provides clues to how the gas giant planets in our solar […]

Continue reading...

March 6, 2013

0 Comments

The Preservation of Colors in Fossil Insects

Explaining the Preservation of Colors in Fossil Insects

By using elevated pressures and temperatures to simulate the effects of burial on structurally colored cuticles of modern beetles, researchers at Yale University show how colors change during fossilization. An international research team led by Yale University scientists has for the first time explained the preservation of colors in fossil insects. The discovery shows why […]

Continue reading...

March 6, 2013

0 Comments

New Insights into the Life and Death of Black Holes

New Insights into the Iife and Death of Black Holes

A newly published study from scientists at the University of York dismisses the so-called firewall paradox and reveals new insights into the life and death of black holes. Their findings dispel the so-called firewall paradox which shocked the physics community when it was announced in 2012 since its predictions about large black holes contradicted Einstein’s […]

Continue reading...

March 6, 2013

0 Comments

UCSF Researchers Discover a New Type of Pluripotent Cell in Breast Tissue

A New Type of Pluripotent Cell Discovered

Scientists at UC San Francisco discovered that rare somatic cells extracted from human breast tissue are pluripotent cells that could play an important role in regenerative medicine. As with human embryonic stem cells, the newly found cells are pluripotent, or capable of turning into most cell types, the authors said. The scientists discovered that when […]

Continue reading...

March 6, 2013

0 Comments

Black Hole Collision May Have Triggered Starforming and Accretion-Powered Activity

Black Hole Collision May Have Triggered Starforming and Accretion-Powered Activity

In a soon to be published paper, researchers at Vanderbilt University suggest that several million years ago the Milky Way was teaming with starforming and accretion-powered activity that was triggered by a violent collision and merger between black holes. These days the core of the Milky Way galaxy is a pretty tame place…cosmically speaking. The […]

Continue reading...