Tuesday, September 15, 2009

New Eyes On The Universe


Butterfly emerges from stellar demise in Planetary Nebula NGC 6302


This new Hubble image - One among the largest ever produced with
the Earth-orbiting observatory - shows gives the most detailed view so
far of the entire Crab Nebula ever made.




The Crab Nebula is one of the most intricately structured and highly dynamical
objects ever observed. The Crab Nebula is a six-light-year-wide expanding
remnant
of a star’s supernova explosion. Japanese and Chinese astronomers
witnessed this
violent event nearly 1,000 years ago in 1054.

The filaments are the tattered remains of the star and consist mostly of hydrogen.
The blue light comes from electrons whirling at nearly the speed of light
around magnetic
field lines from the neutron star.

The neutron star, like a lighthouse, ejects twin beams of radiation that appear
to pulse
30 times a second due to the neutron star's rotation. A neutron star is
the crushed
ultra-dense core of the exploded star.

Till then ta ta..kartukuning

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