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Observable universe

en.wikipedia.org/wiki/Observable_universe

Despite the fact that the universe is 13.8 billion years old, the ... of incorrect figures for the size of the visible universe.

How Big is the Universe? - Space.com

www.space.com/24073-how-big-is-the-universe.html

Dec 24, 2013 ... This might seem to imply that the entire universe lies within our view. But the size of the universe depends on a number of things, including its ...

How to Picture the Size of the Universe | WIRED

www.wired.com/2011/12/universe-size/

Dec 6, 2011 ... Scientists argue over the exact shape and size of the universe but they can calculate one thing with good precision: how far away we can see.

NASA - How Big is Our Universe?

www.nasa.gov/audience/foreducators/5-8/features/F_How_Big_is_Our_Universe.html

Jul 15, 2004 ... That's why the sun, which is a million times the size of the Earth, looks so small. It would take the Space Shuttle seven months to fly there.

www.ask.com/youtube?q=What Is the Size of the Universe?&v=AC7yFDb1zOA
Feb 12, 2013 ... 'There are as many stars in the universe as there are grains of sand on ... And supposing our galaxy were the size of a grain of sand, how big ...

The Scale of the Universe 2 - HTwins.net

htwins.net/scale2/

Zoom from the edge of the universe to the quantum foam of spacetime and learn about everything in between.

How Big is the Entire Universe? – Starts With A Bang - ScienceBlogs

scienceblogs.com/startswithabang/2012/07/18/how-big-is-the-entire-universe/

Jul 18, 2012 ... Even taking the minimum allowable estimate for the size of the Universe means that, at most, less than 0.0001% of the volume of the Universe ...

What is the size of the universe? - Quora

www.quora.com/What-is-the-size-of-the-universe

There is a debate whether the universe is infinite or not. A thought experiment: If the universe is finite, imagine you're standing close to its border. What happens ...

How can it be understood that the universe is 93 billion light years ...

www.quora.com/How-can-it-be-understood-that-the-universe-is-93-billion-light-years-across-and-yet-only-13-8-billion-years-old-1

The reason for the difference is that, first of all, 13.8 billion light years is essentially the radius of .... The cosmic Inflation theory posits that, in fact, the universe grew to mind-boggling sizes in tiny fractions of a second during its infancy. 3.9k Views ...

Why is the Scale of the Universe so Freakishly Large? - io9 - Gizmodo

io9.gizmodo.com/why-is-the-scale-of-the-universe-so-freakishly-large-1719048488

Jul 20, 2015 ... It's hard to wrap our heads around the size of our galaxy, let alone the Universe. At 100,000 light-years across, it would take the New Horizons ...

Answer
The actual size of the entire universe is unknown.
The estimated the size of the observable universe--the part of the universe that can be seen—can theoretically be measured, however. Estimates vary based on different models of the universe’s expansion.
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It took centuries, but we now know the size of the Universe - BBC.com

www.bbc.com

Jun 13, 2016 ... He thought, correctly, that there were many other galaxies as big as our own spread throughout the Universe. But, interestingly, his starting ...

How big is the universe? - Phys.org

phys.org

Oct 5, 2015 ... Our brains struggle to comprehend how big the universe is because ... The visible universe is 13.8(or so) billion light-years in size while the ...

Scale of the Universe | The Universe in Prospective | Primax Studio

scaleofuniverse.com

The Scale of The Universe shows everything from the smallest to largest things ... Size Comparison of Universe · THE “POTSDAM GRAVITY POTATO” SHOWS ...