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Surprising Changes In Black Hole-powered 'Blazar' Galaxy

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bentley
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Surprising Changes In Black Hole-powered 'Blazar' Galaxy

Unread postby bentley » Mon Apr 06, 2009 2:13 pm

Some more interesting news of the deep skies...

An international team of astrophysicists using telescopes on the ground and in space have uncovered surprising changes in radiation emitted by an active galaxy. The picture that emerges from these first-ever simultaneous observations with optical, X-ray and new-generation gamma-ray telescopes is much more complex than scientists expected and challenges current theories of how the radiation is generated.


More info here...
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Re: Surprising Changes In Black Hole-powered 'Blazar' Galaxy

Unread postby onewithnature » Fri Apr 24, 2009 6:43 am

The blazar galaxy, PKS 2155-304, is 1.5 billion light-years away! :roll: :roll: :roll:
That means that light that left that galaxy has been travelling unhindered and still with enough energy to detect it, for 1 500 000 000 years!!! At the speed of 300 000 km per second. See how unfathomable the universe is - our human minds cannot possibly comprehend that distance, let alone one light year!!
And that is not even the edge of this universe! And beyond? Almost indisputably lie more universes. Just to ground all you forumites, so to speak ...
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