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Hubble Ultra Deep Field and Webb (JADES)
The deepest views into space
The line in the picture shows where Hubble and Webb looked: at a seemingly empty patch of sky. It was full of galaxies – almost to the edge of the observable universe.
Key figures
- Patch of sky
- about a tenth as wide as the Full Moon
- Galaxies in it
- about 10,000
- Exposure time
- over 11 days (Hubble, 2004)
- Constellation
- Fornax (southern sky)
Interesting facts
- Scaled up to the whole sky, that makes hundreds of billions of galaxies.
Why exactly there?
A piece of sky was chosen with no bright Milky Way stars and no dust – like a clean window into space. The James Webb Space Telescope later looked at exactly the same region and found the most distant known galaxies there.
Where is it?
The deepest views into space belongs to the “The observable universe” level of the Cosmic Zoom (field of view about 93 billion light-years). As far as we can see at all. Light needs time – looking into the distance means looking into the past. At the edge glows the oldest light, from 380,000 years after the Big Bang. Right in the middle, invisibly small, is where we are.
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