While a similar Roman observation would be just as sharp as Hubble’s and see equally far back in time, it could reveal an area 300 times larger, offering a much broader view of cosmic ecosystems. This video demonstrates how Roman could expand on Hubble’s iconic Ultra Deep Field image. The total amount of exposure time was 11.3 days, taken between Sept. The image required 800 exposures taken over the course of 400 Hubble orbits around Earth. Red represents near-infrared light, which is invisible to the human eye, such as the red glow of dust-enshrouded galaxies. In this image, blue and green correspond to colors that can be seen by the human eye, such as hot, young, blue stars and the glow of Sun-like stars in the disks of galaxies. Located in the constellation Fornax, the region is so empty that only a handful of stars within the Milky Way galaxy can be seen in the image. In ground-based photographs, the patch of sky in which the galaxies reside (just one-tenth the diameter of the full Moon) is largely empty. Peering into the Ultra Deep Field is like looking through an eight-foot-long soda straw. The Ultra Deep Field observations, taken by the Advanced Camera for Surveys, represent a narrow, deep view of the cosmos. Order and structure were just beginning to emerge. These oddball galaxies chronicle a period when the universe was younger and more chaotic. Some look like toothpicks others like links on a bracelet. In vibrant contrast to the rich harvest of classic spiral and elliptical galaxies, there is a zoo of oddball galaxies littering the field. The nearest galaxies - the larger, brighter, well-defined spirals and ellipticals - thrived about 1 billion years ago, when the cosmos was 13 billion years old. The smallest, reddest galaxies, about 100, may be among the most distant known, existing when the universe was just 800 million years old. The snapshot includes galaxies of various ages, sizes, shapes, and colors. Called the Hubble Ultra Deep Field, this galaxy-studded view represents a "deep" core sample of the universe, cutting across billions of light-years. This view of nearly 10,000 galaxies is the deepest visible-light image of the cosmos. Galaxies, galaxies everywhere - as far as NASA's Hubble Space Telescope can see.
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