These images of Jupiter, taken by the James Webb Space Telescope, were hidden inside a document about testing. They helped show that JWST is even better than expected at tracking fast-moving objects
were taken using the telescope’s near infrared camera, NIRCam, using two different filters to focus on separate wavelengths of light. They were released as part of the JWST commissioning report, which details all of the tests the science instruments were put through before they could begin taking data in earnest.
Taking pictures of Jupiter was part of a test to make sure that the observatory could track objects moving at high speeds through the solar system. Jupiter was the slowest – but largest and most spectacular – of nine moving targets used for these tests, and it showed that objects can be tracked even with a bright planet bouncing light into the cameras.
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