Dark Bilious Vapors

But how could I deny that I possess these hands and this body, and withal escape being classed with persons in a state of insanity, whose brains are so disordered and clouded by dark bilious vapors....
--Rene Descartes, Meditations on First Philosophy: Meditation I

Home » Archives » February 2005 » And we squeak out again....

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02/20/2005: And we squeak out again....


As if the Sumatran tsunami wasn't enough of a reminder how dangerous a place the universe can be, it appears that just the next day (December 27th) astronomers observed one of the biggest stellar explosions ever observed--probably the biggest within our galaxy since Johannes Kepler observed the famous supernova of 1604. The explosion took place on a super-magnetic neutron star (or "magnetar") called SGR 1806-20, which is located in our own galaxy on a different spiral arm, approximately 50,000 light years away.

Still, as far away as it was, the explosion "lit up" the sky here--at least it would have if your eyes were better attuned to gamma-rays rather than visible light. But the release of energy in the explosion--estimated to measure approximately 10,000 trillion trillion trillion watts--caused radiation to bounce off the moon and lit up Earth's atmosphere for a while. Not to mention the effects it could have on any nearby systems which have life on them (if any exist):

SGR 1806-20 is sited in the southern constellation Sagittarius. Its distance puts it beyond the centre of the Milky Way and a safe distance from Earth.

"Had this happened within 10 light-years of us, it would have severely damaged our atmosphere and would possibly have triggered a mass extinction," said Dr Bryan Gaensler, of the Harvard-Smithsonian Center for Astrophysics, who is the lead author on one of the forthcoming Nature papers.

"Fortunately there are no magnetars anywhere near us."
However, our friends at the comic strip "User Friendly" have figured it all out.



Len on 02.20.05 @ 07:40 PM CST



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