The Webb Telescope's Unfolding Secondary Mirror

Narration:

Transcript:

How does light from the cosmos reach Webb's instruments? How does light from the cosmos reach Webb's instruments? How does light from the cosmos reach Webb's instruments? the secondary mirror out of the dozens of deployments, this if the one of the last to complete. struts unfold to place the secondary mirror almost 24 feet from the Primary Mirror. Struts unfold to place the secondary mirror almost 24 feet from the Primary Mirror. Engineers offload the weight of the secondary mirror and struts so they deploy as if it was weightless. Engineers offload the weight of the secondary mirror and struts so they deploy as if it was weightless. Engineers offload the weight of the secondary mirror and struts so they deploy as if it was weightless. The spacecraft bus, while not yet physically attached, commands the move electronically. The spacecraft bus, while not yet physically attached, commands the move electronically. The next milestone: Joining the Telescope Element and Spacecraft Element together into the full observatory. end tag