Saying researchers are excited is an understatement.
in the middle of the image belong to the cluster and are similar in age to the sun and Earth. Surrounding and interspersed among the cluster galaxies are more distant galaxies, but stretched into spectacular arcs as if seen through a magnifying glass. And that is exactly what is happening. The background galaxies are much farther from Earth but appear magnified, as their light is bent toward Earth by the gravity of the much closer cluster.
In the background, you can see faint red galaxies scattered like rubies across the sky. Those galaxies are even farther away. By measuring precise attributes of their light, astronomers can tell that they formed over 13 billion years ago and even determine the abundance of different elements in these early galaxies.
Webb is not only producing incredibly sharp images, but it is doing so easily when compared to its predecessor, the, which was launched in 1990. As Rigby quipped,"… the Hubble Extremely Deep Field took two weeks of exposure; Webb went deeper before breakfast.
The technical challenge of doing this type of observation, called transit spectroscopy, is enormous, and this initial result barely scratches the surface of the scientific content of the spectrum.A composite image of the Cosmic Cliffs in the Carina Nebula, created with the James Webb Space Telescope's NIRCam and MIRI instruments.
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