miercuri, 24 august 2011

Shape-Shifting Sunspot











- Every time you look, sunspot 1271 has a new outline. For the past two days the active region has been in a constant state of change, altering its shape on an hourly basis. Full story:

* NASA to Discuss Solar Storm Tracking Efforts Thursday... Are We Prepared for a Catastrophic Solar Storm?...'Controlled' power cuts likely as Sun storm threatens national grid...US official: solar storms expected to peak in 2013 with potentially devastating effect...THERE'S A HOLE IN THE SUN!...Solar flares could paralyse Britain's power and communications, Liam Fox says...Discovery ( Aug 25, 2010): IS THE SUN EMITTING A MYSTERY PARTICLE?...LiveScience(29 July 2010): Antarctica Experiment Discovers Puzzling Space Ray Pattern... National Geographic (November 19, 2008): "High-energy electrons captured over Antarctica could reveal the presence of a nearby but MYSTERIOUS ASTROPHYSICAL OBJECT that's bombarding Earth with cosmic rays... Scientists baffled by unusual upper atmosphere shrinkage... Scientists: solar activity could hit London 2012 Olympic Games: