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This image of the Eagle Nebula showcases the superb resolution and wide field of view of NASA’s upcoming Nancy Grace Roman Space Telescope. In the center is Hubble's view of the Pillars of Creation - superimposed on a ground-based image.  Roman’s Wide Field Instrument field of view is highlighted. Roman’s images will have the resolution of Hubble while covering an area about 100 times larger in a single pointing.

The wide field image for the Eagle nebula is a combination between an image taken by NSF’s 0.9-meter telescope at Kitt Peak National Observatory (Credit: T.A.Rector (NRAO/AUI/NSF and NOIRLab/NSF/AURA) and B.A.Wolpa (NOIRLab/NSF/AURA)) and an image by amateur astronomer Liam Murphy.

This image of the Eagle Nebula showcases the superb resolution and wide field of view of NASA’s upcoming Nancy Grace Roman Space Telescope. In the center is Hubble's view of the Pillars of Creation - superimposed on a ground-based image.  Roman’s Wide Field Instrument field of view is highlighted. Roman’s images will have the resolution of Hubble while covering an area about 100 times larger in a single pointing.  This version has labels.

The wide field image for the Eagle nebula is a combination between an image taken by NSF’s 0.9-meter telescope at Kitt Peak National Observatory (Credit: T.A.Rector (NRAO/AUI/NSF and NOIRLab/NSF/AURA) and B.A.Wolpa (NOIRLab/NSF/AURA)) and an image by amateur astronomer Liam Murphy.

This video of the Eagle Nebula showcases the superb resolution and wide field of view of NASA’s upcoming Nancy Grace Roman Space Telescope. It begins with a Hubble image of the famous Pillars of Creation superimposed on a ground-based image. The view then zooms out to show the full field of view of Roman’s Wide Field Instrument. Roman’s images will have the resolution of Hubble while covering an area about 100 times larger in a single pointing.

The wide field image for the Eagle nebula is a combination between an image taken by NSF’s 0.9-meter telescope at Kitt Peak National Observatory (Credit: T.A.Rector (NRAO/AUI/NSF and NOIRLab/NSF/AURA) and B.A.Wolpa (NOIRLab/NSF/AURA)) and an image by amateur astronomer Liam Murphy.

This video of the Eagle Nebula showcases the superb resolution and wide field of view of NASA’s upcoming Nancy Grace Roman Space Telescope. It begins with a Hubble image of the famous Pillars of Creation superimposed on a ground-based image. The view then zooms out to show the full field of view of Roman’s Wide Field Instrument. Roman’s images will have the resolution of Hubble while covering an area about 100 times larger in a single pointing.  This version has labels.

The wide field image for the Eagle nebula is a combination between an image taken by NSF’s 0.9-meter telescope at Kitt Peak National Observatory (Credit: T.A.Rector (NRAO/AUI/NSF and NOIRLab/NSF/AURA) and B.A.Wolpa (NOIRLab/NSF/AURA)) and an image by amateur astronomer Liam Murphy.

This simulated image of a portion of the Andromeda galaxy highlights the high resolution, large field of view, and unique footprint of NASA’s upcoming Nancy Grace Roman Space Telescope.

Details of a simulated image of the Andromeda galaxy highlight the high resolution of Roman imagery. Unlike a typical wide field camera, which can cover a large area of sky but cannot reveal fine details, Roman will provide both a large field of view and high resolution. The details shown here each cover about 0.0013 square degrees of sky, the equivalent to a single infrared image from Hubble’s WFC3 camera. The pixel scale is 0.11 arcseconds/pixel.

Details of a simulated image of the Andromeda galaxy highlight the high resolution of Roman imagery. Unlike a typical wide field camera, which can cover a large area of sky but cannot reveal fine details, Roman will provide both a large field of view and high resolution. The details shown here each cover about 0.0013 square degrees of sky, the equivalent to a single infrared image from Hubble’s WFC3 camera. The pixel scale is 0.11 arcseconds/pixel.  This version has additional labels.

A composite figure of the Andromeda galaxy (M31) highlights the extremely large field of view of NASA’s upcoming Nancy Grace Roman Space Telescope.

A composite figure of the Andromeda galaxy (M31) highlights the extremely large field of view of NASA’s upcoming Nancy Grace Roman Space Telescope.  This version has additional labels.

A composite figure of the Andromeda galaxy (M31) highlights the extremely large field of view of NASA’s upcoming Nancy Grace Roman Space Telescope.  Inside the Roman footprint is simulated Roman data, which you can see more clearly in the three pull-outs - each one being a Hubble field-of-view.

In addition to the resolved stars in Andromeda, the insets reveal:

The top inset:  star cluster and background galaxy

Middle inset: dust cloud

Bottom inset: young star cluster

NASA’s Nancy Grace Roman Space Telescope, will capture the equivalent of 100 high-resolution Hubble images in a single shot, imaging large areas of the sky 1,000 times faster than Hubble. In several months, the Roman Space Telescope could survey as much of the sky in near-infrared light—in just as much detail—as Hubble has over its entire three decades.

Although Roman has not yet opened its wide, keen eyes on the universe, astronomers are already running simulations to demonstrate what it will be able to see and plan their observations.

This simulated image of a portion of our neighboring galaxy Andromeda (M31) provides a preview of the vast expanse and fine detail that can be covered with just a single pointing of the Roman Space Telescope. Using information gleaned from hundreds of Hubble observations, the simulated image covers a swath roughly 34,000 light-years across, showcasing the red and infrared light of more than 50 million individual stars detectable with Roman.

Watch the video to learn more about the Roman Space Telescope's simulated image.

This image of galaxy cluster Abell 426 showcases the superb resolution and wide field of view of NASA’s upcoming Nancy Grace Roman Space Telescope. It highlights Hubble's view of the galaxy NGC 1275 superimposed on a ground-based image. Roman’s Wide Field Instrument field of view is highlighted. Roman’s images will have the resolution of Hubble while covering an area about 100 times larger in a single pointing.

The wide field image for Abell 426 is composed of a combination of the Digitized Sky Survey and an image by Petri Kehusmaa.

This image of galaxy cluster Abell 426 showcases the superb resolution and wide field of view of NASA’s upcoming Nancy Grace Roman Space Telescope. It highlights Hubble's view of the galaxy NGC 1275 superimposed on a ground-based image. Roman’s Wide Field Instrument field of view is highlighted. Roman’s images will have the resolution of Hubble while covering an area about 100 times larger in a single pointing.  This version has labels.

The wide field image for Abell 426 is composed of a combination of the Digitized Sky Survey and an image by Petri Kehusmaa.

This video of galaxy cluster Abell 426 showcases the superb resolution and wide field of view of NASA’s upcoming Nancy Grace Roman Space Telescope. It begins with a Hubble image of the galaxy NGC 1275 superimposed on a ground-based image. The view then zooms out to show the full field of view of Roman’s Wide Field Instrument. Roman’s images will have the resolution of Hubble while covering an area about 100 times larger in a single pointing.

The wide field image for Abell 426 is composed of a combination of the Digitized Sky Survey and an image by Petri Kehusmaa.

This video of galaxy cluster Abell 426 showcases the superb resolution and wide field of view of NASA’s upcoming Nancy Grace Roman Space Telescope. It begins with a Hubble image of the galaxy NGC 1275 superimposed on a ground-based image. The view then zooms out to show the full field of view of Roman’s Wide Field Instrument. Roman’s images will have the resolution of Hubble while covering an area about 100 times larger in a single pointing.  This version has labels.

The wide field image for Abell 426 is composed of a combination of the Digitized Sky Survey and an image by Petri Kehusmaa.

This image showcases UGC 2885 (Rubin's Galaxy), with Hubble's view in inset and the Roman field of view.  Roman will be able to capture the entire halo of galaxies like Rubin in a single pointing, which is about 100 times larger than a Hubble pointing.

This image showcases UGC 2885 (Rubin's Galaxy), with Hubble's view in inset and the Roman field of view.  Roman will be able to capture the entire halo of galaxies like Rubin in a single pointing, which is about 100 times larger than a Hubble pointing.

In this version, an estimate of the extent of the halo of Rubin's Galaxy is shown.

The footprint of the Nancy Grace Roman Space Telescope's Wide Field Instrument on top of the Hubble Legacy Survey.

Hubble Legacy Survey:

This Hubble Space Telescope image represents the largest, most comprehensive "history book" of galaxies in the universe.

The image, a combination of nearly 7,500 separate Hubble exposures, represents 16 years' worth of observations.

The ambitious endeavor, called the Hubble Legacy Field, includes several Hubble deep-field surveys, including the eXtreme Deep Field (XDF), the deepest view of the universe. The wavelength range stretches from ultraviolet to near-infrared light, capturing all the features of galaxy assembly over time.

The image mosaic presents a wide portrait of the distant universe and contains roughly 265,000 galaxies. They stretch back through 13.3 billion years of time to just 500 million years after the universe's birth in the big bang. The tiny, faint, most distant galaxies in the image are similar to the seedling villages from which today's great galaxy star-cities grew. The faintest and farthest galaxies are just one ten-billionth the brightness of what the human eye can see.

The wider view contains about 30 times as many galaxies as in the Hubble Ultra Deep Field, taken in 2004. The new portrait, a mosaic of multiple snapshots, covers almost the width of the full Moon. Lying in this region is the XDF, which penetrated deeper into space than this legacy field view. However, the XDF field covers less than one-tenth of the full Moon's diameter.

The footprint of the Nancy Grace Roman Space Telescope's Wide Field Instrument on top of the Hubble Legacy Survey.  Pullout- of the Hubble Ultra Deep Field is shown.

Hubble Legacy Survey:

This Hubble Space Telescope image represents the largest, most comprehensive "history book" of galaxies in the universe.

The image, a combination of nearly 7,500 separate Hubble exposures, represents 16 years' worth of observations.

The ambitious endeavor, called the Hubble Legacy Field, includes several Hubble deep-field surveys, including the eXtreme Deep Field (XDF), the deepest view of the universe. The wavelength range stretches from ultraviolet to near-infrared light, capturing all the features of galaxy assembly over time.

The image mosaic presents a wide portrait of the distant universe and contains roughly 265,000 galaxies. They stretch back through 13.3 billion years of time to just 500 million years after the universe's birth in the big bang. The tiny, faint, most distant galaxies in the image are similar to the seedling villages from which today's great galaxy star-cities grew. The faintest and farthest galaxies are just one ten-billionth the brightness of what the human eye can see.

The wider view contains about 30 times as many galaxies as in the Hubble Ultra Deep Field, taken in 2004. The new portrait, a mosaic of multiple snapshots, covers almost the width of the full Moon. Lying in this region is the XDF, which penetrated deeper into space than this legacy field view. However, the XDF field covers less than one-tenth of the full Moon's diameter.

(2011) Astronomers have pushed NASA's Hubble Space Telescope to its limits by finding what they believe is the most distant object ever seen in the universe. Its light traveled 13.2 billion years to reach Hubble, roughly 150 million years longer than the previous record holder. The age of the universe is 13.7 billion years.

The SDSS map of the Universe. Each dot is a galaxy; the color bar shows the local density.

Image Added

Visualization of simulated Roman emission-line galaxy distribution data used to measure BAO and RSD. The wedge shown covers an RA sweep of 45° with a DEC thickness of 1°, and includes more than 215,000 galaxies of a much larger 5-million galaxy simulated galaxy catalog.

This version developed for experts in cosmology.

Image Added

Visualization of simulated Roman emission-line galaxy distribution data used to measure BAO and RSD. The wedge shown covers an RA sweep of 45° with a DEC thickness of 1°, and includes more than 215,000 galaxies of a much larger 5-million galaxy simulated galaxy catalog.