ScienceDaily: Most Popular News

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• Companion planets can increase old worlds' chance at life
• Study of twins discovers gene mutation linked to short sleep duration
• Groundbreaking research maps cultural history by mapping mobility of notable intellectuals
• Asteroid impacts significantly altered ancient Earth
• Fermi satellite detects gamma-rays from exploding novae: Surprising discovery dispels long-held idea
• Shrinking dinosaurs evolved into flying birds
• Hubble shows farthest lensing galaxy yields clues to early universe
• Fossils could be discovered on the moon: Signs of ancient life may be littered across the moon
• Key to aging immune system: Discovery of DNA replication problem
• Kids with autism and sensory processing disorders show differences in brain wiring
• Five daily portions of fruit and vegetables may be enough to lower risk of early death
• Cool-burning flames in space, could lead to better engines on Earth

Companion planets can increase old worlds' chance at life Posted: 01 Aug 2014 06:12 AM PDT Having a companion in old age is good for people -- and, it turns out, might extend the chance for life on certain Earth-sized planets in the cosmos as well. Planets cool as they age. Over time their molten cores solidify and inner heat-generating activity dwindles, becoming less able to keep the world habitable by regulating carbon dioxide to prevent runaway heating or cooling.

Study of twins discovers gene mutation linked to short sleep duration Posted: 31 Jul 2014 05:15 PM PDT Researchers who studied 100 twin pairs have identified a gene mutation that may allow the carrier to function normally on less than six hours of sleep per night. The genetic variant also appears to provide greater resistance to the effects of sleep deprivation.

Groundbreaking research maps cultural history by mapping mobility of notable intellectuals Posted: 31 Jul 2014 12:00 PM PDT New research presents a pioneering approach to understanding European and North American cultural history by mapping out the mobility patterns of notable intellectuals over a 2,000-year span.

Asteroid impacts significantly altered ancient Earth Posted: 31 Jul 2014 12:00 PM PDT New research shows that more than four billion years ago, the surface of Earth was heavily reprocessed as a result of giant asteroid impacts. A new model based on existing lunar and terrestrial data sheds light on the role asteroid bombardments played in the geological evolution of the uppermost layers of the Hadean Earth.

Fermi satellite detects gamma-rays from exploding novae: Surprising discovery dispels long-held idea Posted: 31 Jul 2014 12:00 PM PDT Astronomers have discover very high energy gamma rays being emitted by an exploding star. The surprising discovery dispels the long-held idea that classical nova explosions are not powerful enough to produce such high-energy radiation.

Shrinking dinosaurs evolved into flying birds Posted: 31 Jul 2014 11:55 AM PDT Scientists have revealed how massive, meat-eating, ground-dwelling dinosaurs evolved into agile flying birds: they just kept shrinking and shrinking, for over 50 million years.

Hubble shows farthest lensing galaxy yields clues to early universe Posted: 31 Jul 2014 08:09 AM PDT Astronomers have unexpectedly discovered the most distant galaxy that acts as a cosmic magnifying glass. Seen in a new image as it looked 9.6 billion years ago, this monster elliptical galaxy breaks the previous record holder by 200 million years.

Fossils could be discovered on the moon: Signs of ancient life may be littered across the moon Posted: 31 Jul 2014 07:10 AM PDT Physicists have tested what would happen if a piece of rock containing microscopic fossils from Earth was launched into space and hit the surface of the moon. The team turned fossil-filled rock into powder which was mixed with water and frozen to replicate a meteoroid.

Key to aging immune system: Discovery of DNA replication problem Posted: 31 Jul 2014 06:44 AM PDT The immune system ages and weakens with time, making the elderly prone to life-threatening infection and other maladies, and scientists have now discovered a reason why.

Kids with autism and sensory processing disorders show differences in brain wiring Posted: 30 Jul 2014 11:09 AM PDT Researchers have found that children with sensory processing disorders have decreased structural brain connections in specific sensory regions different than those in autism, further establishing SPD as a clinically important neurodevelopmental disorder.

Five daily portions of fruit and vegetables may be enough to lower risk of early death Posted: 29 Jul 2014 07:49 PM PDT Eating five daily portions of fruit and vegetables is associated with a lower risk of death from any cause, particularly from cardiovascular disease, but beyond five portions appears to have no further effect, finds a new study.

Cool-burning flames in space, could lead to better engines on Earth Posted: 28 Jul 2014 11:16 AM PDT Scientists have discovered a new type of cool burning flames that could lead to cleaner, more efficient engines for cars. The discovery was made during a series of experiments on the International Space Station.

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