A newly released image from NASA's James Webb Space Telescope shows a crowded field of galaxies and stars in stunning detail.
Not only are the other galaxies in the image smaller than LEDA 2046648, but some of them are also more distant, offering a deeper view of the's history. One of the main aims of JWST is to observe distant galaxies, some located much further away than LEDA 2046648, in order to look back in time at the universe when it was in its infancy.
This historical insight is possible because light takes a finite time to travel to Earth from distant galaxies, so looking at these galaxies is akin to seeing them at the time when the light left, sometimes as early in the 13.8-billion-year history of the cosmos as around 300 million years after theLight from these galaxies doesn't remain unchanged over the course of its many-billion-year journey to the 21-foot-wide gold-plated primary mirror of JWST, however.
The expansion of the universe stretches the wavelengths of this light, reducing its energy from the visible spectrum to infrared light. This process is known as"
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