Due to a calibration update for one of the primary cameras on the James Webb Space Telescope, studies using the first few weeks of data from the observatory may be in error


August 15, 2022

The James Webb Space Telescope in a clean room at NASA’s Goddard Space Flight Center in Maryland

NASA/Desire Stover

The James Webb Space Telescope (JWST) is performing better than expected, and that may be a problem for some of the early results. An update to our understanding of how one of its cameras works could mean that many galaxies spotted in the early data aren’t as far away as they seem.

When JWST sends data back to Earth, it doesn’t come as full images. Astronomers must process…


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