GLOBAL LAUNCH MISSION
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James Webb Space Telescope Launch Mission

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On December 25, 2021, an Ariane 5 launched the James Webb Space Telescope from the Guiana Space Centre, sending the international infrared observatory toward the Sun–Earth L2 point.

Launch time
December 25, 2021 at 09:20 AM GMT-3
Rocket
Ariane 5
Launch site
Guiana Space Centre
An Ariane 5 carrying the James Webb Space Telescope lifts off from the Guiana Space Centre
The James Webb Space Telescope launches on December 25, 2021.NASA/Bill Ingalls · NASA Image and Video Library ↗NASA informational/editorial media use; credit retained; no endorsement implied. NASA identifiers and logos are not used to imply endorsement.
Mission Overview

Mission overview

The James Webb Space Telescope was developed through cooperation among NASA, ESA and the Canadian Space Agency. An Ariane 5 launched it from the Guiana Space Centre, and official sources confirm successful launch and separation before its journey to Sun–Earth L2.

Launch Information

Launch information

Launch time
December 25, 2021 at 09:20 AM GMT-3
Status
Completed
Result
Success
Rocket
Ariane 5
Launch site
Guiana Space Centre
Payload
James Webb Space Telescope
Organizations
National Aeronautics and Space Administration (NASA) · Arianespace · European Space Agency (ESA)
Timeline

Mission timeline

No mission timeline

Reviewed mission events will appear here.

Schedule History

Schedule history

No schedule changes

No reviewed schedule changes have been recorded.

Verification & Sources

Verification and sources

Sources are a visible part of the mission record, not a footnote.

VerifiedLast updated · Sep 21, 2026, 5:52 PM
01

NASA Science: Webb Launch

NASA

Primaryprimary

Supports December 25, 2021 at 7:20 a.m. EST / 12:20 UTC, Ariane 5, Webb, Europe’s Spaceport, successful launch and NASA/ESA/Arianespace roles.

Retrieved Sep 21, 2026, 1:27 PMOpen original source ↗
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