Götterdämmerung
Well Known Member
After 20 years of development the James Webb Space Telescope has released it's first image to the public. A long exposure of a presumably empty part of space reveals thousands of galaxies from a region the size of a grain of sand held at arms length. Ignore the few bright six-spiked objects, they're foreground stars in our own galaxy. What you see are thousands galaxies with 100 billion stars each, stretching to infinity.
Also shown in the image is the power of gravity. Below and to the right of the largest spiked object is a fuzzy white spot. It is a cluster of super galaxies (10x normal size) that is distorting space so much that it has bent the light of the of the galaxies behind it, like a lens. The curved red objects that seem to encircle it are the further away background galaxies we would otherwise not have seen.
The Hubble Telescope has a similar image, the Hubble Deep Field. What the JWST brings is Infrared. As the further one looks in these images the redder objects become, a result of our expanding universe. So much so that the furthest objects dip from the red to the infrared, which Hubble can't see, so we're seeing that much further. Also, back in space means back in time. We're getting closer to seeing what happened at the beginning of time.
Also shown in the image is the power of gravity. Below and to the right of the largest spiked object is a fuzzy white spot. It is a cluster of super galaxies (10x normal size) that is distorting space so much that it has bent the light of the of the galaxies behind it, like a lens. The curved red objects that seem to encircle it are the further away background galaxies we would otherwise not have seen.
The Hubble Telescope has a similar image, the Hubble Deep Field. What the JWST brings is Infrared. As the further one looks in these images the redder objects become, a result of our expanding universe. So much so that the furthest objects dip from the red to the infrared, which Hubble can't see, so we're seeing that much further. Also, back in space means back in time. We're getting closer to seeing what happened at the beginning of time.