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Galaxy Evolution Explorer

NASA's Galaxy Evolution Explorer was a wide-field ultraviolet space telescope that surveyed galaxies across much of cosmic history. Its far- and near-ultraviolet observations mapped star formation, supported studies of galaxy evolution, and created a durable ultraviolet archive covering most of the sky.

Galaxy Evolution Explorer
NASA/JPL-Caltech · The stored 362x450 image is a resized rendition of the JPL PIA04234 original at the direct source URL above; the spacecraft, Earth, and composition match that original. The JPL record identifies it as Artist concept of Galaxy Evolution Explorer and credits NASA/JPL-Caltech. JPL Image Use Policy states that, unless otherwise noted, images on public jpl.nasa.gov sites may be used for any purpose without prior permission, subject to the policy special cases; it requires a credit and prohibits implied endorsement. The policy notes that separately owned third-party material is identified in the caption; this source record identifies NASA/JPL-Caltech and shows no separate third-party notice. NASA insignia, logotype, identifiers, and JPL logos remain protected. This records asset-level provenance and source basis and does not grant rights to those protected identifiers or imply endorsement. · Source
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Identity

Aliases
GALEX
Name
Galaxy Evolution Explorer
Status
completed

Details

Astronauts
-
Description
NASA's Galaxy Evolution Explorer was a wide-field ultraviolet space telescope that surveyed galaxies across much of cosmic history. Its far- and near-ultraviolet observations mapped star formation, supported studies of galaxy evolution, and created a durable ultraviolet archive covering most of the sky.
Destination
Earth orbit for all-sky ultraviolet observations of the cosmos, measuring the history of star formation and galaxy evolution
End Date
2013-06-28
Launch Site
Outcome
GALEX met its prime objectives and continued through three mission extensions. During a decade of operations it surveyed hundreds of millions of galaxies, produced a broad ultraviolet sky archive, and enabled discoveries ranging from extended star-forming structures to a long ultraviolet tail behind Mira.
Programs
Start Date
2003-04-28
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Assets & Meta

Creation Time
July 18, 2026 at 14:37:33 UTC
Updated Time
August 23, 2026 at 20:59:22 UTC

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Affiliations
Search Name
Galaxy Evolution Explorer GALEX
Space Stations
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Vehicles