WR 104 – Potential Space Nasty
I really like “bad astronomy” articles, but even more so when they admit they are scared. In this instance it is a binary star known as Wr 104. At a distance of 5000-8000 light years a supernova is not expected to harm us. But a Gamma Ray Burst might, especially if it is aimed straight at us!
GRBs are a special type of supernova. When a very massive star explodes, the inner core collapses, forming a black hole, while the outer layers explode outwards. Due to a complex and fierce collusion of forces in the core, two beams of raw fury can erupt out of the star, mind-numbing in their power. Composed mostly of high-energy gamma rays, they can carry more energy in them than the Sun will put out in its entire lifetime. They are so energetic we can see them clear across the Universe, and having one too close would be bad.
…Worse, the flood of subatomic particles from such a GRB may in fact be more dangerous. These cosmic rays hit the air and create fast particles called muons, which would rain down over the Earth. How bad is that? Actually, it’s pretty uncertain; the number of variables involved is large, and the modeling of this is notoriously difficult. It’s not even clear that the cosmic rays from a GRB at this distance would even reach us, and if they did, what exactly would happen. The worst-case scenario is pretty bad — large scale mass extinctions…
http://blogs.discovermagazine.com/badastronomy/2008/03/03/wr-104-a-nearby-gamma-ray-burst/
Breaking News!!!
New archaeological evidence presented by Carl de Borhegyi son of Maya archaeologist Stephan F. de Borhegyi, strongly suggests that the correlation of the Mayan Calendar, with the European Calendar is off by 256 years, and contrary to much contemporary hype, the end of the fifth world ended in the year 1756, in other words, our world did not come to an end and the Mayan Calendar simply began a new cycle. Visit mushroomstone.com for full story.