Watch the Launch

Additional Media

James Webb Space Telescope Launch — Official NASA Broadcast

Watch the launch of the James Webb Space Telescope—the most powerful space telescope ever made. This mission is scheduled to lift off at 7:20 a.m. EST (12:20...

Arianespace Flight VA256 - Webb Space Telescope

Arianespace’s fourteenth launch of 2021 with the third Ariane 5 of the year will place Webb Space Telescope in a transfer orbit to Lagrange 2 point.Liftoff i...

James Webb Space Telescope

NASA's James Webb Space Telescope (JWST), developed in partnership with ESA and CSA, is operated by AURA's Space Telescope Science Institute.

James Webb Space Telescope (JWST)

Circle Image

Overview

Destination: Sun-Earth L2
Mission: Astrophysics

Sun-Earth L2 Ariane Launch Area 3 Kourou, French Guiana

The James Webb Space Telescope is a space telescope developed by NASA, ESA and CSA to succeed the Hubble Space Telescope as NASA's flagship astrophysics mission. Its primary mirror, the Optical Telescope Element, is composed of 18 hexagonal mirror segments which combine to create a 6.5 m diameter mirror, considerably larger than Hubble's 2.4 m mirror. This will allow JWST to provide improved infrared resolution and sensitivity over Hubble, and will enable a broad range of investigations across the fields of astronomy and cosmology, including observing some of the most distant events and objects in the universe, such as the formation of the first galaxies.

Updates

SwGustav • Dec. 25, 2021, 12:58 p.m.

Successful launch confirmed


SwGustav • Dec. 21, 2021, 9:37 p.m.

Delaying by 24 hours due to adverse weather forecast


Jay • Dec. 17, 2021, 10:18 p.m.

Go for launch.


Ariane 5 ECA+

Family: Ariane 5
Configuration: ECA+

Ariane 5 ECA+ is a variant of the Ariane 5 heavy-lift vehicle, with a taller ECA-D upper stage.

Specifications
  • Max Stage
    2
  • Length
    57.7 m
  • Diameter
    5.4 m
  • Fairing Diameter
    5.4 m
  • Launch Mass
    780 T
  • Thrust
    11400 kN
Family
  • Name
    Ariane 5 ECA+
  • Family
    Ariane 5
  • Variant
    ECA+
  • Alias
  • Full Name
    Ariane 5 ECA+
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
  • Geostationary Transfer Orbit
    10200 kg
  • Direct Geostationary
  • Sun-Synchronous Capacity

Arianespace

Circle Image
CEO: Stéphane Israël Founded: 1980 Successes: 125 Failures: 7 Pending: 32

Agency Type: Commercial

Arianespace SA is a multinational company founded in 1980 as the world's first commercial launch service provider. It undertakes the production, operation, and marketing of the Ariane programme. Their vehicles launch exclusively from French Guiana in South America.

INFO WIKI

Related News

Spaceflight Now

Webb closes in on destination with critical mirror alignment on tap

Thirty days outbound from Earth, the James Webb Space Telescope will slip into its parking orbit a million miles away Monday, an ideal spot to scan the heavens in search of faint infrared light from the first generation of stars and galaxi…

NASA

NASA to Discuss Webb’s Arrival at Final Destination, Next Steps

Scientists and engineers operating NASA’s James Webb Space Telescope will answer questions about the mission’s latest milestones in a NASA Science Live broadcast at 3 p.m. EST Monday, Jan. 24, followed by a media teleconference at 4 p.m.

Arstechnica

All hail the Ariane 5 rocket, which doubled the Webb telescope’s lifetime

"It would have been criminal not to do it."

James Webb Space Telescope fully deploys, Northrop Grumman marks sunshield success

NASA

NASA’s Webb Telescope Reaches Major Milestone as Mirror Unfolds

NASA’s James Webb Space Telescope team fully deployed its 21-foot, gold-coated primary mirror, successfully completing the final stage of all major spacecraft deployments to prepare for science operations.

Kourou, French Guiana

Ariane Launch Area 3


Atlas V 511
Success
2 days, 8 hours ago
USSF-8
Space Launch Complex 41 - Cape Canaveral, FL, USA

USSF-8 will launch two identical Geosynchronous Space Situational Awareness Program (GSSAP) satellites GSSAP-5 and GSSAP-6 directly to a near-geosync…


Falcon 9
Success
5 days, 1 hour ago
Starlink Group 4-6
Launch Complex 39A - Kennedy Space Center, FL, USA

A batch of 49 satellites for Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 2D
Success
1 week ago
Shiyan 13
Launch Complex 9 - Taiyuan, People's Republic of China

Chinese satellite declared for technological demonstration purposes, details TBD.


LauncherOne
Success
1 week, 3 days ago
Above the Clouds
Mojave Air and Space Port - Air launch to orbit

Mission to a 500 km circular orbit inclined at 45 degrees carrying eight R&D satellites from US government agencies with communications and navigatio…


Falcon 9
Success
1 week, 3 days ago
Transporter 3 (Dedicated SSO Rideshare)
Space Launch Complex 40 - Cape Canaveral, FL, USA

Transporter 3 mission is a dedicated rideshare flight to a sun-synchronous orbit with dozens of small microsatellites and nanosatellites for commerci…


Falcon 9
Success
2 weeks, 3 days ago
Starlink Group 4-5
Launch Complex 39A - Kennedy Space Center, FL, USA

A batch of 49 satellites for Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Simorgh
Failure
3 weeks, 3 days ago
3 unknown payloads
Imam Khomeini Spaceport - Semnan Space Center, Islamic Republic of Iran

Three unknown research payloads are reported to have been sent into space, according to the Iranian Ministry of Defense. However, no new objects are …


Long March 3
Success
3 weeks, 4 days ago
TJSW-9
Launch Complex 2 (LC-2) - Xichang Satellite Launch Center, People's Republic of China

Chinese classified satellite claimed to be for communication technology test purposes. Actual mission not known.


Long March 2D
Success
3 weeks, 4 days ago
Tianhui 4
Launch Area 4 (SLS-2 / 603) - Jiuquan, People's Republic of China

Chinese cartography satellite, details TBD.


Angara A5/Persey
Failure
3 weeks, 6 days ago
Dummy payload
35/1 - Plesetsk Cosmodrome, Russian Federation

This is the third test flight of Angara A5 launch vehicle and its first flight with Persey upper stage. Since it's a test flight, the rocket carries …