ScienceDaily: Top Science News

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• New kind of cosmic flash may reveal birth of a black hole
• Human brain cells developed in lab, grow in mice
• 'Dark oxidants' form away from sunlight in lake and ocean depths, underground soils
• New dinosaur fossil discovered in China: Meat-eating dinosaur from late Jurassic period was less than a year old
• Monkey math: Baboons show brain's ability to understand numbers
• Injectable nano-network controls blood sugar in diabetics for days at a time
• How to frustrate a quantum magnet: 16 atomic ions simulate a quantum antiferromagnet
• Hearing the Russian meteor, in America: Sound arrived in 10 hours, lasted 10 more
• Individual brain cells track where we are and how we move
• Telling time on Saturn: Undergraduate student shows how planet's magnetosphere changes with the seasons
• Boom in jellyfish: Overfishing called into question

New kind of cosmic flash may reveal birth of a black hole Posted: 03 May 2013 08:04 PM PDT According to an astrophysicist, a new kind of cosmic flash may reveal something never seen before: the birth of a black hole.

Human brain cells developed in lab, grow in mice Posted: 03 May 2013 08:03 PM PDT A key type of human brain cell developed in the laboratory grows seamlessly when transplanted into the brains of mice, UC San Francisco researchers have discovered, raising hope that these cells might one day be used to treat people with Parkinson's disease, epilepsy, and possibly even Alzheimer's disease, as well as and complications of spinal cord injury such as chronic pain and spasticity.

'Dark oxidants' form away from sunlight in lake and ocean depths, underground soils Posted: 03 May 2013 10:29 AM PDT All forms of life that breathe oxygen -- even ones that can't be seen with the naked eye, such as bacteria -- must fight oxidants to live. But neutralizing environmental oxidants such as superoxide was a worry only for organisms that dwell in sunlight -- in habitats that cover a mere 5 percent of the planet. That was the only place where such environmental oxidants were thought to exist. Now researchers have discovered the first light-independent source of superoxide. The key is bacteria common in the depths of the oceans and other dark places.

New dinosaur fossil discovered in China: Meat-eating dinosaur from late Jurassic period was less than a year old Posted: 03 May 2013 10:27 AM PDT Fossil remains in northwestern China have been identified as a new species of small theropod, or meat-eating, dinosaur.

Monkey math: Baboons show brain's ability to understand numbers Posted: 03 May 2013 10:27 AM PDT Opposing thumbs, expressive faces, complex social systems: it's hard to miss the similarities between apes and humans. Now a new study with a troop of zoo baboons and lots of peanuts shows that a less obvious trait -- the ability to understand numbers -- also is shared by humans and their primate cousins.

Injectable nano-network controls blood sugar in diabetics for days at a time Posted: 03 May 2013 08:47 AM PDT In a promising development for diabetes treatment, researchers have developed a network of nanoscale particles that can be injected into the body and release insulin when blood-sugar levels rise, maintaining normal blood sugar levels for more than a week in animal-based laboratory tests.

How to frustrate a quantum magnet: 16 atomic ions simulate a quantum antiferromagnet Posted: 03 May 2013 07:50 AM PDT Frustration crops up throughout nature when conflicting constraints on a physical system compete with one another. The way nature resolves these conflicts often leads to exotic phases of matter that are poorly understood. In a new article, researchers describe how to frustrate a quantum magnet composed of sixteen atomic ions -- to date the largest ensemble of qubits to perform a simulation of quantum matter.

Hearing the Russian meteor, in America: Sound arrived in 10 hours, lasted 10 more Posted: 03 May 2013 07:50 AM PDT How powerful was February's meteor that crashed into Russia? Strong enough that its explosive entry into our atmosphere was detected almost 6,000 miles away in Lilburn, Ga., by infrasound sensors -- a full 10 hours after the meteor's explosion. A researcher has modified the signals and made them audible, allowing audiences to "hear" what the meteor's waves sounded like as they moved around the globe on February 15.

Individual brain cells track where we are and how we move Posted: 03 May 2013 06:49 AM PDT Researchers have gained new insights into how our brains form maps of our environment. They found that special cells can note either a fixed location, or the distance a mammal travels, depending on the cues it gets from the environment.

Telling time on Saturn: Undergraduate student shows how planet's magnetosphere changes with the seasons Posted: 03 May 2013 06:49 AM PDT An undergraduate student has discovered that a process occurring in Saturn's magnetosphere is linked to the planet's seasons and changes with them, a finding that helps clarify the length of a Saturn day and could alter our understanding of the Earth's magnetosphere.

Boom in jellyfish: Overfishing called into question Posted: 03 May 2013 06:47 AM PDT Will we soon be forced to eat jellyfish? Since the beginning of the 2000s, these gelatinous creatures have invaded many of the world's seas, like the Japan Sea, the Black Sea, the Mediterranean Sea, etc. Is it a cyclic phenomenon, caused by changes in marine currents or even global warming? Until now, the causes remained unknown. A new study exposes overfishing as the main factor.

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