Scientists detect dark lightning linked to visible lightning

(Phys.org)—Researchers have identified a burst of high-energy radiation known as ‘dark lightning’ immediately preceding a flash of ordinary lightning. The new finding provides observational evidence that the two phenomena are connected, although the exact nature of the relationship between ordinary…   Original post on phys.org    Comments on reddit.com   

Chernobyl death toll: How many cancer cases are caused by low-level radiation?

When the Chernobyl nuclear reactor exploded in 1986, experts predicted as many as 40,000 extra cancer deaths from the radiation spewed onto parts of what was then the Soviet Union. Friday is the 27th anniversary of the disaster. How many people has Chernobyl killed so far? We’ll probably never know….   Original post on slate.com    Comments on reddit.com   

8th century gamma ray burst irradiated the Earth, study finds

(Phys.org)—A nearby short duration gamma-ray burst may be the cause of an intense blast of high-energy radiation that hit the Earth in the 8th century, according to new research led by astronomers Valeri Hambaryan and Ralph Neuhӓuser. The two scientists, based at the Astrophysics Institute of the…   Original post on phys.org    Comments on reddit.com   

Houston, we have another problem: Study shows space travel is harmful to the brain

As if space travel was not already filled with enough dangers, a new study out today in the journal PLOS ONE shows that cosmic radiation – which would bombard astronauts on deep space missions to places like Mars – could accelerate the onset of Alzheimer’s disease.   Original post on phys.org    Comments on reddit.com   

The mystery of dark matter may be near to being deciphered – Niels Bohr Institute – University of Copenhagen

With the latest observations from the Planck satellite, researchers from the Niels Bohr Institute, among others, may be closer than ever to a solution to the origin of the mysterious dark matter   Original post on ku.dk    Comments on reddit.com   

German renewables output hits record high in H1 – Reuters

BERLIN, July 26 (Reuters) – Germany produced 67.9 billionkilowatt hours of renewable energy in the first half of 2012, arecord high and an increase of 19.5 percent from the same periodlast year, industry   Original post on reuters.com    Comments on reddit.com   

Have the Odds of Finding Life on Mars Increased? -The August 5th “Curiosity” Science-Lab Landing

New NASA research that lays out the optimal depths and locations to probe for organic molecules like those that compose living organisms as we know them, could help the newest Mars rover scout for evidence of life beneath the surface…   Original post on dailygalaxy.com    Comments on digg.com   

Supernova Could Have Caused Mysterious “Red Crucifix” in the Sky in A.D. 774: Scientific American

An ancient text suggests that an eighth-century jump in carbon 14 levels in trees could be explained by a previously unrecognized supernova explosion   Original post on scientificamerican.com    Comments on reddit.com   

Fukushima Radiation Tracked Across Pacific Ocean – Japan Nuclear Plant Disaster – LiveScience

An ocean expedition off the coast of Japan found high levels of radioactive material released by the Fukushima nuclear power plants during the nuclear disaster last March.   Original post on livescience.com    Comments on reddit.com