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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.

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Identity

Aliases
GALEX
Name
Galaxy Evolution Explorer
Slug
galaxy-evolution-explorer
Status
completed

Details

Astronauts
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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.
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.
Program
Small Explorer Program
Start Date
2003-04-28
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Creation Time
July 18, 2026 at 14:37:33 UTC
Updated Time
July 18, 2026 at 14:37:33 UTC

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