NASA Engineers Tension James Webb Telescope Sunshield in Critical Deployment Phase
NASA engineers successfully tension three of the five layers on the James Webb Space Telescope's sunshield, a crucial step to prepare the observatory for deep-space observations. The team anticipates a smooth, drama-free process to complete the remaining layers over the next few days.
Engineers activating the James Webb Space Telescope fine-tune its electrical power system and cool down slightly warm motors before moving forward with the deployment of its critical sunshield. The team carefully pulls the five hair-thin layers taut using motor-driven cables and pulleys, a process that takes about three days to fully complete. By Monday night, the crew successfully tensions three of the five layers, leaving the final two for Tuesday.
The sunshade deployment stands as one of the most challenging hurdles for the $10 billion observatory, yet NASA project manager Bill Ochs expresses strong confidence in a smooth operation. He notes that the best kind of space operations are boring, and the team does not expect any drama as they finish tightening the final layers. The spacecraft currently undergoes a standard getting-to-know-you phase as engineers learn its exact characteristics in the space environment.
Launched on Christmas Day atop an Ariane 5 rocket, Webb travels toward an orbit a million miles from Earth to capture infrared light from the earliest stars and galaxies. Aside from minor adjustments common to all new spacecraft, the complex observatory moves through its initial activation almost exactly as planned. Previous successful milestones include the deployment of the solar array, two trajectory correction maneuvers, and the extension of the high-gain antenna and sunshade pallets.