How far is the edge of the universe?

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Published 2019-10-22
Did you ever sit under the clear night sky and wonder “does it go on forever?" The size of the universe has long been a question that has puzzled scientists, philosophers, and theologians, without a clear answer… well, until now. In this video, Fermilab’s Dr. Don Lincoln leads you through what modern science can say about the size of the universe.

For more information visit:
www.fnal.gov/

All Comments (21)
  • Does this channel pay YouTube NOT to interrupt the lecture? Dr. Lincoln, it's always a pleasure to listen to your lessons.
  • @hamentaschen
    When my dog gets a treat from my left hand she was expecting to be in my right, it blows her little mind...completely. That is what this video is doing to me! Thank you Dr. Don!
  • What a good explanation. Space, physics, astronomy, all they are fascinating.
  • @dreadinside654
    I wish this man was my science teacher when I was in high school. Now at the age of 40 I love listening to his presentation here in YouTube. It's so calming and informative at the same time. 😃
  • @junfenggao2417
    "It's a complicated calculation but a straightforward one". Not falling for that one again.
  • @jhaychylla
    None of us will ever live, in this lifetime, to find out.
  • @tnrk2011
    More videos are welcome on Space and Universe. The subject is very complex but, still easy to follow your slow and precise narration.
  • This guy is a really great presenter. One of the best on you tube. Whoever does the scripts does a great job as well.
  • @Nickeman
    One of the best channels on youtube
  • @simev500
    A fascinating presentation. This has filled in some of the gaps I had in my understanding of what I have picked up here and there all these years.
  • @zeproo
    Dr., sir i found your channel by chance. This is best explanation ever.
  • @mohdzikrya5396
    The thing I liked the most is realistic admission that yet we don't know a great deal. Every answer presents a new query about nature.
  • @benlonghair
    "Space is big. Really big. You just won’t believe how vastly hugely mindbogglingly big it is. I mean you may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space." -Douglas Adams
  • A very complex subject explained in a simple manner, great lecture
  • @bruinflight1
    I try to measure how much I love this channel and keep coming up with infinities in my calculations! Please make more videos Dr. L! You're the BEST!
  • One of my favorite quotes by Douglas Adams: > Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.
  • @rnnyhoff
    It is "mind-blowing" and in all rational aspects, seemingly inconceivable. Might as well be infinite if the visible universe is 92 billion light years in diameter but its actual size 250X that. Great video explained thoughtfully and clearly. Bravo Professor Lincoln!
  • @alancox4469
    Just saw your video for the first time, I AM HOOKED!