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James Webb Telescope discovers 2,500 hidden galaxies in iconic Hubble image

The James Webb Space Telescope has delivered a spectacular revisitation of one of astronomy's most iconic images: the Hubble Ultra Deep Hubble's Deep Field is known for teeming with galaxies, in the area of space that was initially thought to be peering deep into this tiny region of the sky using its advanced instruments, Webb has provided an unprecedentedly rich and detailed glimpse into the distant Universe, capturing thousands of galaxies, some from the earliest epochs following the Big This latest campaign focused on the MIRI Deep Imaging Survey (MIDIS) region, where Webb's Mid-Infrared Instrument (MIRI) was trained for nearly 100 hours using its three shortest-wavelength deep field, our old friend. We've come to look at you again!We last saw this region through @NASAHubble's eyes. Webb's view uncovers previously hidden galaxies and offers new insights into the formation of the first cosmic NASA Webb Telescope (@NASAWebb) August 1, 2025This marathon observation included Webb's longest-ever stare at an extragalactic field in a single filter, resulting in one of the deepest mid-infrared views of the cosmos to date. The data, combined with observations from Webb's Near-Infrared Camera (NIRCam), has allowed astronomers to probe the formation and evolution of galaxies over billions of this fresh Webb image, more than 2,500 sources have been identified within the field, a confirmation to its extraordinary sensitivity and resolution. Among these are hundreds of extremely red galaxies, suspected to be massive, dust-obscured galaxies, or ancient galaxies populated by mature stars that formed soon after the dawn of the keen mid-infrared sharpness makes it possible to resolve details in the structure of these galaxies and understand how their light and energy are distributed, offering new clues about the growth and evolution of cosmic image's vibrant hues tell a deeper story: orange and red mark galaxies bright in the longest mid-infrared wavelengths, indicating rich dust content, intense star formation, or even the presence of a bright active galactic nucleus at the core. The field shown here is known as the MIRI Deep Imaging Survey (MIDIS) region. (Photo: ESA) Greenish-white galaxies are especially distant, their light stretched by the Universe's expansion into the mid-infrared, marking them as high-redshift and ancient. Blue and cyan shades correspond to closer galaxies shining mainly in the near-infrared revisiting the legacy Hubble Ultra Deep Field, Webb not only honours its predecessor's tradition of deep exploration but pushes the boundaries further, uncovering new galaxies, exposing previously hidden cosmic features, and enriching our understanding of the earliest chapters in the story of the Universe.- EndsTrending Reel