We’ve seen enough documentaries to know that the universe is rather large. These shows have compared the relative sizes of the planetary bodies in our solar system and taken us on trips to distant worlds in outer space. And projects like THINGS (The HI Nearby Galaxy Survey) have gone to great ends to catalogue the galaxies that have been observed thus far.
The Scale of the Universe is an informative Flash that shows the universe from the tiniest particles at fractions of a yoctometre (10-24 of a metre) to humans to giant nebulas that look like testicles to the very edge of what we can observe, many many gigaparsecs away.
Take that intergalactic trip in fullscreen here.
The animation was created by a 14-year-old Cary Huang, with help from his twin brother Michael.