Webb image archive
OTIS Undergoes Cryogenic Testing
Webb’s Optical Telescope element/Integrated Science module (OTIS) was placed in NASA’s Johnson Space Center’s historic Chamber A on June 20, 2017, to prepare for its final t...
- Date
- Dec 13, 2023
- Observatory
- James Webb Space Telescope
- Credit
- NASA / ESA / CSA / STScI
- Archive ID
- 4258
Webb’s Optical Telescope element/Integrated Science module (OTIS) was placed in NASA’s Johnson Space Center’s historic Chamber A on June 20, 2017, to prepare for its final three months of testing in a cryogenic vacuum that mimics temperatures in space. Chamber A simulates an environment where the telescope will experience extreme cold–around 37 kelvins (minus 236 degrees Celsius or minus 393 degrees Fahrenheit).