Evolution of the Universe: Large-scale Structure and Galaxy

Visual excerpt from the PBS HDTV ''Runaway Universe'', courtesy WGBH-NOVA and Tom Lucas Productions.The Adaptive Mesh Refinement simulation grid automatically refines into subgrids to develop small-scale features, generating over half a terabyte of data. We see gravitation forming nested hierarchies which vary many orders of magnitude. Tiny fluctuations in the density of the early universe are amplified into a network of interconnected filaments. Condensing gas clouds give birth to new stars and merge into whirling galaxies which congregate, collide, and interact in a fiery cosmic dance.

This item is part of the collection: SIGGRAPH at www.archive.org

Director: Donna Cox, Stuart Levy, Robert Patterson
Producer: Donna Cox (visualization), Tom Lucas (NOVA)
Production Company: National Center for Supercomputing Applications
Keywords: Animation Screening Room 2001
Contact Information: cox@ncsa.uiuc.edu
virdir.ncsa.uiuc.edu/virdir/virdir.html
605 East Springfield

Champaign, IL 61820
United States
217 244 2005
Fax: 217 244 2909

Category:

Film & Animation

Tags:

• Large
• scale
• Structure
• and
• Galaxy
• animation

[mojanke]

impressive visualisation. you might want to try setting up some mpc scales though?

[minutemanbob57]

I love them all....I am a space junkie/addict. I wish I lived near a university doing research on this stuff...

[77GSlinger]

quackademic!

[crawhip2]

...and the recession velocities calculated by Hubble remained the same as derived from spectroscopy and redshifts and were not affected by Baade's research.

[crawhip2]

actually he discovered that the distance of the andormedia galaxy to be two times furhter away than Hubble had observed , indicating a universe twice as old as 1.8 billion years i,e close to the desired 4 billion year mark which coincided or agreed with the overall age of the earth , thus strengthening the Big Bang model once again

[crawhip2]

this is part 3 (c):

Baade's results matched accurately the age of the stars even-

Hubble WAS the first to find Cepheids outside the Milky Way galaxy, namely the Andromeda galaxy

[crawhip2]

part 1, 2 and 3 below , this is part3:

Infact another astronomer (walter baade) using a more powerful teslescope and more cunning discovered that the recession velocities were not moving a bit slower, this indicated that it had taken a much longer time to arrive at their current destination etc. which menat that the universe was much older than 2 billion, but atleast 3.6 billion years old ...

[crawhip2]

I'm going to be a bit more generous in my little essay and inform u that Hubble didn't get a 'smooth ride' with his heroic feet-actually he was a bit in error about the distances of these galaxies receding awa from ours...

[crawhip2]

the distant galaxies were red-shifted, infact Hubbles' findings were able to pinpoint the exact age of the universe to be roughly 4 billion years old, and this agrees with what was the currently established aged of the stars -which were contained in our universe

[crawhip2]

technically speaking the universe IS expanding, (mathematically speaking i.e) I know it is hard to visualize , but it's true. Astronomer Edwin Hubble was first to anticipate this when he observed how distant galaxies were receding away from our own Milky Way galaxy. He deduced this from their recession velocities. he aslo measured their (distant galaxies) doppler shifts...