Interested in getting a telescope and want to support Deep Astronomy? Check out this link (aff) http://bit.ly/2Wq0BO8 
OPT is a great company and will set you up right the first time.  Purchases help Deep Astronomy keep creating content

By popular Space Fan request, 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?

This concept is non-trivial to try and explain in a 5 minute YT video, but I do my best.  I hope this helps!

Thanks to all of you space fans for watching this channel, it means a lot to me.

Music from Kevin MacLeod:
http://incompetech.com

In honor of 'The Big Bang Theory' series finale, Barenaked Ladies perform the show's original theme song one last time. #BIGBANGonLSSC #LSSC #Colbert

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Barenaked Ladies Perform 'The Big Bang Theory Theme'

https://deepastronomy.space

I've recently discovered an animation that was rendered using the measured redshift of all 10,000 galaxies in the Hubble Ultra Deep Field image.

I've written a short script that leads you through a quick history of both deep field images and this video ends with a fly-through of the Ultra Deep Field.

Every galaxy in the image is in its proper distance as viewed from the telescope line of sight.

As if this image wasn't amazing enough.

Animation Credit:

Hubble Cosmological Redshift Animation Courtesy:
http://hubblesite.org/newscenter/archive/releases/2004/28/video/b/

Mike Gallis

http://phys23p.sl.psu.edu/phys_anim/Phys_anim.htm
http://www.youtube.com/watch?v=e6G2Z6iD-9M

Music Used in this video was purchased from stockmusic.net and belongs to the Spirit Legends Collection.

The tunes I used were:

Voice Redo B
Voice in the Dark

Link to demos:

http://www.stockmusic.net/index.cfm/page/main.collectionDetails/collectionId/67

The Hubble Ultra Deep Field in 3D

Get involved in the exciting hobby of amateur astronomy, get a telescope! (aff link): http://bit.ly/2Wq0BO8

Probably my biggest regret when I made the Hubble Deep Field in 3D video is saying the phrase "these galaxies are racing away from us, in some cases faster than light".

I had originally thought I was being clever and the comment would spur discussion. instead there was no discussion, only name calling and I mightily regretted putting it in there.

Anyway, this video was a long time coming, I had been meaning to make this for some time to illustrate what I was talking about.

Music used:

http://www.archive.org/details/kpu107

Don't forget to play with WolframAlpha, it's awesome!:
http://www.wolframalpha.com/

How Can Galaxies Travel Faster Than Light?

The Big Bang Theory - Exit Ticket

The Big Bang Theory - Student Lesson Outline 

The Big Bang Theory - Student Presentation 

The Big Bang Theory - Teaching Presentation 

The Big Bang Theory is a lesson by Teach Science with Fergy, containing engaging videos, presentations and activities to help develop students' science knowledge.

What is the Universe Expanding Into?

Science Resource Description