system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why do images like the one recently taken by James Webb have 60 degree angle spikes coming out of the Star pictured?
gpt
They're called diffraction spikes.  They're caused by diffraction around the support struts for the telescope.  Diffraction is where light waves encounter and obstacle and can partially pass on around the edges.  That's a really simplified explanation of diffraction.

So, the reason it's around all of the bright stars is because the light from all points that the telescope is focused on passes through the struts.  This means that the light from each star passed through them so it appears around all bright stars (bright means bright in the picture........ the star might actually be really dim).

Diffraction spikes have become so common in astronomical pictures that pictures taken through telescopes that don't cause them will have them photoshopped in otherwise a lot of people think that they look wrong/not as beautiful.