That’s one estimate of the size of our universe, and this video (added to our YouTube Playlist), using pictures from the Hubble Space Telescope, tries to put it in perspective. For more amazing photos from the Hubble, see this collection.
What Does 47 Billion Light Years (in Radius) Look Like?
Support Open Culture
We’re hoping to rely on our loyal readers rather than erratic ads. To support Open Culture’s educational mission, please consider making a donation. We accept PayPal, Venmo (@openculture), Patreon and Crypto! Please find all options here. We thank you! 
Support Us
We're hoping to rely on loyal readers, rather than erratic ads. Please click the Donate button and support Open Culture. You can use Paypal, Venmo, Patreon, even Crypto! We thank you!
Receive our Daily Email
About Us
Open Culture scours the web for the best educational media. We find the free courses and audio books you need, the language lessons & educational videos you want, and plenty of enlightenment in between.
Advertise With Us
©2006-2023 Open Culture, LLC.
All rights reserved.
Open Culture was founded by Dan Colman.
Very badly done narration, with little respect to the average viewer. It might be appropriate to a child of 5 or younger. He starts the video by insulting the intelligence of the average viewer, and continues to imply that they must be profoundly stupid throughout the video. I had to skip forward several times hoping that he would finally get to the point of the topic. And! Then there is the painfully monotone aspect to the narration. I hope that this unprofessional narrator is not a professor, teacher, or actor… because he is clearly not qualified to speak publicly in any forum.