NASA telescope to help untangle galaxy growth, dark matter makeup - EurekAlert

NASA’s Nancy Grace Roman Space Telescope will study wispy streams of stars that extend far beyond the apparent edges of many galaxies. Missions like the Hubble and James Webb space telescopes would have to patch together hundreds of small images to see these …

image: This series of images shows how astronomers find stellar streams by reversing the light and dark, similar to negative images. Color images of each of the nearby galaxies featured are included … [+6059 chars]

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