Orbital Insertion Burn a Success, Webb Arrives at L2

Orbital Insertion Burn a Success, Webb Arrives at L2

Today, at 2 p.m. EST, the James Webb Space Telescope fired its onboard thrusters for nearly five minutes (297 seconds) to complete the final postlaunch course correction to Webb’s trajectory. This mid-course correction burn inserted Webb toward its final orbit around the second Sun-Earth Lagrange point, or L2, nearly 1 million miles away from the Earth. The […]

James Webb Telescope Reaches Major Milestone as Mirror Unfolds

James Webb Telescope Reaches Major Milestone as Mirror Unfolds

Above — An artist’s conception of the James Webb Space Telescope in space shows all its major elements fully deployed. The telescope was folded to fit into its launch vehicle and then was slowly unfolded over the course of two weeks after launch. Credits: NASA GSFC/CIL/Adriana Manrique Gutierrez NASA’s James Webb Space Telescope team fully […]

James Webb Space Telescope Successfully Deploys Sunshield

James Webb Space Telescope Successfully Deploys Sunshield

On Jan. 4, 2022, engineers successfully completed the deployment of the James Webb Space Telescope’s sunshield, seen here during its final deployment test on Earth in December 2020 at Northrop Grumman in Redondo Beach, California. The five-layer, tennis court-sized sunshield is essential for protecting the telescope from heat, allowing Webb’s instruments to cool down to […]

Precise Ariane 5 launch likely to extend Webb’s expected lifetime

Precise Ariane 5 launch likely to extend Webb's expected lifetime

This post was repurposed from the ESA Science and Exploration page. After a successful launch of the NASA/ESA/CSA James Webb Space Telescope on Christmas Day, and completion of two mid-course correction maneuvers, the Webb team has analyzed its initial trajectory and determined the observatory should have enough propellant to allow support of science operations in orbit for significantly […]

James Webb Space Telescope Rolls Out to Launchpad for Christmas Morning Launch

NASA’s James Webb Space Telescope has begun its stately rollout to the Arianespace ELA-3 launch complex at Europe’s Spaceport located near Kourou, French Guiana. Arianespace and NASA will closely monitor the vitals of Webb and the Ariane 5 rocket during the nearly two-hour process. Webb is scheduled for liftoff at 7:20 am EST Saturday, Dec. […]

James Webb Telescope Placed on Top of Ariane 5

James Webb Telescope Placed on Top of Ariane 5

On Saturday, Dec. 11, NASA’s James Webb Space Telescope was secured on top of the Ariane 5 rocket that will launch it to space from Europe’s Spaceport in French Guiana. After its arrival in the final assembly building, Webb was slowly hoisted nearly 130 feet and then perfectly aligned on top of the Ariane 5, […]

Ariane 5 Rocket moved to meet James Webb Telescope at Assembly Building

The Ariane 5 launch vehicle which will launch the James Webb Space Telescope was moved to the final assembly building at Europe’s Spaceport in French Guiana. Ariane 5 parts shipped from Europe to French Guiana, have been coming together inside the launch vehicle integration building.  The lower part of the Ariane 5 comprises the cryogenic main core stage (with the […]

Webb Space Telescope Fueled for Launch

Webb Space Telescope Fueled for Launch

The James Webb Space Telescope was fuelled inside the payload preparation facility at Europe’s Spaceport in French Guiana ahead of its launch on Ariane 5. Webb’s thrusters will use this propellant to make critical course-corrections after separation from Ariane 5, to maintain its prescribed orbit about one and a half million kilometres from Earth, and to repoint the […]