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VideoLive coverage: Webb telescope deploys primary mirror
The James Webb Space Telescope deployed the first of its two primary mirror wings Friday to unfold the observatory's reflective surface to its full 21.3-foot (6.5-meter) diameter. The second mirror wing unfolded Saturday.
VideoTest launch of Russia’s heavy-lift Angara rocket marred by upper stage failure
The third test launch of Russia’s heavy-lift Angara A5 rocket Dec. 27 was marred by an upper stage failure that stranded a dummy payload in a low orbit.
VideoHigh-stakes sunshield deployment begins on Webb telescope
Mission controllers started the risky process Tuesday to unfurl the James Webb Space Telescope's sunshield, a five-layer thermal barrier necessary to give the observatory infrared vision into the distant universe.
VideoLive coverage: Soyuz rocket launches with more OneWeb satellites
OneWeb, Roscosmos, and Arianespace closed out the year with the launch of a Soyuz rocket from the Baikonur Cosmodrome in Kazakhstan with 36 more Florida-built satellites for OneWeb's globe internet network. The mission took off at 8:10:37 a.m. EST (1310:37 GMT), or 6:10 p.m. local time at Baikonur.
VideoWebb telescope finally leaves Earth in search of light from first galaxies
The James Webb Space Telescope, a NASA-led international collaboration that took nearly 30 years and $10 billion to get to the launch pad, finally left Earth with a Christmas morning rocket ride from a European spaceport in South America, setting off on a mission to hunt for the first light in the universe. That was just the easy part.
VideoLive coverage: James Webb Space Telescope lifts off atop Ariane 5
An Ariane 5 rocket has lifted off from French Guiana on a mission to send the James Webb Space Telescope toward a point a million miles from Earth. The powerful European rocket blasted off at 7:20 a.m. EST (1220 GMT).
VideoVideo: Keith Parrish, Webb’s commissioning manager, talks through telescope deployments
Spaceflight Now's Editor, Stephen Clark, speaks with NASA's Keith Parrish, the commissioning manager for the Webb Space Telescope. It is his job to make sure the observatory unfolds and extends correctly. He talks us through the deployment sequence in the month after launch. Find out how shake, shimmy and twirl are in the ground controller's tool box to fix anything that goes wrong.
VideoVideo: John Grunsfeld, astronaut and former NASA science chief, talks Webb
Spaceflight Now's Stephen Clark speaks to astronaut, astronomer and former NASA science head, John Grunsfeld about the upcoming launch of the James Webb Space Telescope. What big discoveries is he expecting from JWST? Is he nervous about the complex process to unfold the telescope in space? Why did his efforts to prepare JWST for possible servicing fail?
VideoLive coverage: Ariane 5 rocket reaches launch pad with Webb telescope
With weather conditions looking favorable for launch Saturday, Arianespace teams in French Guiana transferred an Ariane 5 rocket to its jungle launch complex Thursday with the James Webb Space Telescope.
VideoLive coverage: Japanese H-2A rocket launches with Inmarsat satellite
A Japanese H-2A rocket launched a commercial communications satellite for Inmarsat Wednesday. The satellite rode the most powerful variant of the H-2A rocket, built and operated by Mitsubishi Heavy Industries. Liftoff occurred at 10:32 a.m. EST (1532 GMT).