JWST mirror alignment image
An image of the star 2MASS J17554042+6551277 taken by the James Webb Space Telescope that confirmed the performance of the spacecraft's optics. The rays are diffraction patterns from the shape of the mirror segments.

NASA has completed the next step in the commissioning of the James Webb Space Telescope by fine-tuning the alignment of its primary mirror segments, confirming the telescope’s optics will meet or exceed expectations.

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...