Saturday, January 15, 2011

Black holes & revelations




A little something about black holes.

A black hole is a region of space from which nothing, not even light, can escape. It is the result of the deformation of spacetime caused by a very compact mass. Around a black hole there is an undetectable surface which marks the point of no return. This surface is called an event horizon. It is called "black" because it absorbs all the light that hits it, reflecting nothing, just like a perfect black body in thermodynamics.[1] Quantum mechanics predicts that black holes also emit radiation like a black body with a finite temperature. This temperature decreases with the mass of the black hole, making it difficult to observe this radiation for black holes of stellar mass.

Despite its invisible interior, a black hole can be observed through its interaction with other matter. A black hole can be inferred by tracking the movement of a group of stars that orbit a region in space. Alternatively, when gas falls into a stellar black hole from a companion star, the gas spirals inward, heating to very high temperatures and emitting large amounts of radiation that can be detected from earthbound and Earth-orbiting telescopes.

Astronomers have identified numerous stellar black hole candidates, and have also found evidence of supermassive black holes at the center of galaxies. In 1998, astronomers found compelling evidence that a supermassive black hole of more than 2 million solar masses is located near the Sagittarius A* region in the center of the Milky Way galaxy. Recent results indicate that the supermassive black hole is more than 4 million solar masses.

Event Horizon describes pretty evenly how I have felt for a very, very, long time.
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Far away
This ship is taking me far away
Far away from my memories
Of the people who care if I live or die

The starlight
I will be chasing your starlight
Until the end of my life
I don't know if it's worth it anymore

Hold you in my arms
I just wanted to hold you in my arms

My life
You electrify my life
Let's conspire to re-ignite
All the souls that would die just to feel alive

I'll never let you go
If you promise not to fade away, never fade away

Our hopes and expectations
Black holes & revelations

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