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What is the Universe expanding into?

submitted by longde

1 decade 2 years 1 month 2 weeks ago

I offer this video to help answer some of your questions regarding the expanding universe. Many of you consistently ask: If the universe is expanding, then what is it expanding into?-yt

6 Comments

*science

Adding video to channels (Science) - requested by kulpims.

Hank Green talked about this recently - he was particularly interested in the fact there's no edge to the universe.

http://videosift.com/video/How-Big-is-the-Universe

Ugh, I wanted to like that, but it was so horribly done. The end talks about how over 100 years ago we didn't know about other galaxies - which is true - so if we've discovered so much in 100 years, why would it talk so much about "never" finding things out? For all the narrator knows, in another 100 years we could have come up with new technologies that make it trivial to find out what the boundary is (if it exists).

GenjiKilpatrick

I wanna know!

You know, it really annoys me when they use figures like "one hundred billion" to describe the number of galaxies there are.. There is no possible way to make an even remotely accurate estimate. This guy suggests the universe may be infinite but, he has a finite number for the count of galaxies... ?

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