1 00:00:00,133 --> 00:00:03,337 NASA's James Webb Space Telescope has successfully ... 2 00:00:03,337 --> 00:00:05,806 passed another series of critical testing milestones. 3 00:00:05,806 --> 00:00:06,473 Music 4 00:00:06,473 --> 00:00:08,375 Webb's "brain" and sunshield, known together as the ... 5 00:00:08,375 --> 00:00:10,811 spacecraft element, successfully completed ... 6 00:00:10,811 --> 00:00:12,479 acoustic and vibration testing. 7 00:00:12,479 --> 00:00:13,347 Music 8 00:00:13,347 --> 00:00:15,515 Before testing, technicians enclosed the ... 9 00:00:15,515 --> 00:00:18,986 spacecraft element in a special tent cover to protect it ... 10 00:00:18,986 --> 00:00:20,053 while being moved. 11 00:00:20,053 --> 00:00:21,588 Music 12 00:00:21,588 --> 00:00:24,591 Once inside the acoustic test chamber, technicians blast ... 13 00:00:24,591 --> 00:00:29,596 it with sound pressure energy nearly 10 times ... 14 00:00:29,596 --> 00:00:31,632 more pressure than a rock concert. 15 00:00:31,632 --> 00:00:33,267 Music 16 00:00:33,267 --> 00:00:35,369 These acoustic and vibration tests simulate the ... 17 00:00:35,369 --> 00:00:37,371 launch environment the spacecraft element ... 18 00:00:37,371 --> 00:00:39,373 will experience. Completing these tests help ensure it ... 19 00:00:39,373 --> 00:00:40,641 can survive liftoff. 20 00:00:40,641 --> 00:00:42,476 Music 21 00:00:42,476 --> 00:00:45,479 With the acoustic and vibration tests ... 22 00:00:45,479 --> 00:00:47,381 successfully completed, the spacecraft element's next ... 23 00:00:47,381 --> 00:00:48,382 tests will be inside a thermal vacuum chamber. 24 00:00:48,382 --> 00:00:54,121 Music 25 00:00:54,121 --> 00:00:59,326 Beep ... beep ... beep