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Home astronomy telescope

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This series of images shows how astronomers find stellar streams by reversing the light and dark, similar to negative images, but stretched to highlight the faint streams. Color images of each of the nearby galaxies featured are superposed to scale to highlight the easily visible disk. Galaxies are surrounded by enormous halos of hot gas sprinkled with sporadic stars, seen as the shadowy regions that encase each galaxy here. NASA’s upcoming Nancy Grace Roman Space Telescope is expected to improve on these observations by resolving individual stars to understand each stream’s stellar populations and see stellar streams of various sizes in even more galaxies. Credit: Carlin et al. (2016), based on images from Martínez-Delgado et al. (2008, 2010)
Posted inPress Release

Roman Mission Gears Up For A Torrent Of Future Data

NASA’s Nancy Grace Roman Space Telescope team is exploring ways to support community efforts that will prepare for the deluge of data the mission will return. Recently selected infrastructure teams […]

by SpaceRef October 17, 2023July 15, 2024
This is an artist’s concept of one of the brightest explosions ever seen in space. Called a Luminous Fast Blue Optical Transient (LFBOT), it shines intensely in blue light and evolves rapidly, reaching peak brightness and fading again in a matter of days, unlike supernovae which take weeks or months to dim.
Posted inPress Release

Hubble Finds A Bizarre Explosion In An Unexpected Place

by SpaceRef October 9, 2023July 15, 2024
Jellyfish Galaxy JO206
Posted inPress Release

Hubble Observes Jellyfish Galaxy JO206

by SpaceRef August 26, 2023July 15, 2024
Posted inPress Release

NGC 2346 – A Cosmic Butterfly’s Delicate Wings

by SpaceRef July 9, 2015July 15, 2024
Posted inPress Release

Sudden Appearance of Galaxies Detected in the Early Universe

by SpaceRef November 19, 2014July 15, 2024
Posted inPress Release

ALMA Finds Best Evidence Yet for Galactic Merger in Distant Protocluster

by SpaceRef November 11, 2014July 15, 2024

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