The Entire Observable Universe

In summary, the conversation discusses a picture of the observable universe that is contained within the Milky Way. The picture is admired for its ability to capture the vastness of the universe, but it is noted that the actual universe is not contained within the picture. The origins of the picture and its contents are also questioned.
  • #1
Kanov
2
0
The entire observable universe is contained rather graciously in this wonderful picture, for your admiration.

2Iwvegv.png
 
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  • #2
Welcome to the PF.

Please add attribution. Where did you copy the picture from?
 
  • #3
also would like to know how photo was captured/generated.
 
  • #4
The entire observable universe may well be in the field of the camera's view, but it most certainly is not actually in the picture. Everything in the pic is in the milky way, with the possible exception a very small number of objects which are, in cosmological terms, approximately zero distance from the milky way.
 
  • #5
Nice picture, it definitely is a picture of what in ordinary language might be called 'observable', with a half decent set of lenses.
 

1. What is the observable universe?

The observable universe refers to the portion of the universe that we are able to see and detect using our current technology. It is estimated to have a diameter of about 93 billion light-years.

2. How big is the entire observable universe?

The observable universe is estimated to have a diameter of about 93 billion light-years. However, it is constantly expanding and its size is not definite.

3. How old is the entire observable universe?

The age of the entire observable universe is estimated to be around 13.8 billion years old, based on observations of the cosmic microwave background radiation.

4. What is the composition of the entire observable universe?

The entire observable universe is primarily composed of dark matter and dark energy, which make up about 95% of its total mass and energy. The remaining 5% is made up of visible matter, such as stars, galaxies, and gas.

5. Is the entire observable universe infinite?

The observable universe is not infinite. It is constantly expanding, but it has a finite size. However, the size of the entire universe (including the parts that are not observable) is still unknown and could possibly be infinite.

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