Where do James Webb’s unique “spikes” come from? When we started imaging the Universe with Hubble, every star had four “spikes” coming from it. Here’s why Webb will have more. Less than three months after its initial launch, it finally happened: the James Webb Space Telescope revealed its first telescope alignment evaluation image. For the first…

https://medium.com/starts-with-a-bang/where-do-james-webbs-unique-spikes-come-from-78ce388f26cf