SLOAN Digital Sky Survey (3-D Visualization of Visible Universe) [720p]

This visualization presents a 3-D view of the largest structures in the Universe via data from the Sloan Sky Survey. The SDSS is the most ambitious astronomical survey ever undertaken. It provides a 3-dimensional map of about a million galaxies and quasars. As the survey progresses, the data are released to the scientific community and the general public in annual increments.

Category:

Science & Technology

Tags:

• SLOAN Digital Sky Survey
• universe
• galaxies
• quasars
• map of universe

[djxatlanta]

This is a simulated view of the Universe from our point of view in space. The black areas are areas of the Universe that are blocked from our view because we're inside our own Galaxy. Imagine you're out in the countryside with clear skies but a thick ground fog.... you can look up and see the stars high in the sky, but the stars close to the horizon and nearby trees are obscured by fog. Same principle in looking at faraway galaxies.

[wolverine005]

@dhansen888 That's just area's we have yet to map. The gaps that is.

[nessusdawning]

@nadoeloiskat I would really like an answer to this as well. I have a sense it is a projected hypotheses but due to scale in comparison to everything else contained within inclusive of dark matter, it would be really good to get a definite answer of just how big a universe we are currently aware of in terms of extremity.

[Jpwillerd]

Why are there random gaps in the animation?

[jaykulls]

@OrCkHaNtheGrEaT This is the universe from our percpective, we are in the center. As we look further out into space, we see the universe as it was more time ago. You'll notice that as it comes further out the galaxies appear to be less formed, as they were many billions of years ago.

[RodrogerAu]

Wow, and people think we are alone in the universe.............

[ThemreEpi]

yellow region is the cosmic microwave background fluctuations?

[OrCkHaNtheGrEaT]

why is the center of this map is more denser than the outer regions? shouldnt the universe has to be roughly the same density all around?

[OrCkHaNtheGrEaT]

is this map made under visible light or combined frequencies? i mean would we see the same at the same distance to universe?

[nadoeloiskat]

Does anybody knows is this bubble in the end the entire estimated universe or the visible universe?

And is the estimated 100 billion galaxies in the visible or entire universe?

Or should i go to wikipedia for the answers?

[Akira89M]

is that on a program that you can use,or is it only a video you can watch.

[lfdmotta]

@dhansen888 We know why the distrubition is like this. The initial conditions are provided by early universe inflation. The distribution is not even because of the quantum flutcutations in the early universe. The initial conditions are evolved in time according to the equations of General Relativity, resulting in this beautiful map. There is a mathematical way of decoding the information of the map, called a Fourier transform, and we can more easily compare the Fourier transform with theory.