Ultra Deep Field
This item has been posted here before. Probably more than once. But it came up again today, and I thought I'd pass this short film along.
There's a piece of information that I didn't see in the film. The Ultra Deep Field photo, containing about 10,000 galaxies, is shown below.
This photo covers an area of sky that would be the size of a 1 mm x 1 mm piece of paper held 1 meter away.
About one thirteen millionth of the entire sky.
Wow.