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   

Geoengineering would turn blue skies whiter – environment – 01 June 2012 – New Scientist

The skies might change colour if geoengineers inject light-scattering aerosols into the upper atmosphere to combat global warming   Original post on newscientist.com    Comments on reddit.com   

Image of the Day: The Universe in Infrared

Our human window of vision on the Universe is incredibly limited, within a stunningly small range of wavelengths. With our eyes we see wavelengths between 0.00004 and 0.00008 of a centimeter (where, not so oddly, the Sun and stars emit…   Original post on dailygalaxy.com    Comments on digg.com   

Cosmic Rays Zapping South Pole – “From the Neutron Star of the Vela Supernova?”

The stunning image above from the orbiting Chandra X-ray Observatory is the Vela pulsar — the collapsed stellar core within the Vela supernova remnant. The Vela pulsar is a neutron star. More massive than the Sun, it has the density…   Original post on dailygalaxy.com    Comments on digg.com   

The Great Disk Drive in the Sky: How Web giants store big-and we mean big-data

Data needs at Amazon, Microsoft, and Google have driven the development of distributed file systems such as GFS and Dynamo. The decisions and trade-offs of each can explain a lot about why cloud services work the way they do—and why they sometimes don’t behave well at all.   Original post on arstechnica.com    Comments on digg.com   

Blackbirds Falling From Sky In Arkansas Again

(NewsCore) – Blackbirds are again falling from the skies over the same small US town where thousands of the creatures crashed to the ground last New Year’s Eve. Police on Saturday night rushed through an emergency ban on fireworks in a bid to avoid a repeat of last year’s bizarre events in the Arkansas town of Beebe, but local television station KTHV reported that nearly 100 dead birds have so far fallen from the skies. The first birds began plunging to the ground around 7:00pm Saturday night, according to police. Beebe was catapulted into world headlines last year when about 4,000 dead blackbirds rained down on the town on New Year’s Eve. Most scientists eventually agreed the birds died after they were spooked by fireworks and flew into buildings, trees and each other.   More