With the James Webb Space Telescope at its final destination in orbit around the sun, now the telescope has to go through a series of alignment processes to get it ready for collecting science data.

With the exciting process of deployment complete, the James Webb Space Telescope team is now embarking on their next challenge: Aligning the telescope’s mirror segments. This slow, months-long process ...

If you have ever attended a club star party or an amateur astronomy convention, you have undoubtedly strolled through an observing field. Scattered throughout are silhouettes of telescopes and ...

Aspherical components in optical systems can increase the free design variables without introducing new aberrations. That brings improved imaging quality and reduced size and weight. Aspheric ...