The Scale of the Universe - Interactive

[WyoSeeker]

Pretty cool!

http://apod.nasa.gov/apod/ap120312.html

[Tarka the Duck]

Fascinating!! Thanks!

[Seikou-Kishi]

Cruithne's smaller than Mt Everest? I'd never have guessed that.

Awesome find Wyo

[Muzz]

Wow Thanks for posting.

[Forevernyt]

That was awesome and it really, REALLY give you a perspective on how small we really are.

[Atlas]

209 Seconds That Will Make You Question Your Entire Existence

Source: https://youtube.com/watch?v=gIbfYsQfNWs

[Lloyd]

It was nice to see that they admitted that length is unknown before they get down to quarks etc. I don't believe quarks really exist. They're likely way wrong about the size of the observed universe, because it's based on a wrong assumption about redshift. What they call the most distant galaxies, 13 billion lightyears away, are probably quasars, which emit bipolar jets. It's high-speed movement of electrons recombining with protons in the jets that are producing the redshift of the photons that the electrons emit toward us. So the observed universe is probably only 1 or 2 billion lightyears in diameter in reality. There's actually a lot of margin of error. I've read that the margin of error for distances beyond 2 or 3 hundred lightyears is huge, we may find that we'll need to readjust our perspective eventually. I liked the second video linked too, though it suffers from the same assumptions at highest zoom.