If we can use it to see farther than we have ever seen before why haven’t they got a really good close up of the nearest Solar system outside of our own?
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Because the reason that Webb can see further is more down to the type of light it picks up, not how big it is. Hubble for example, sees mainly in visible light. If we wanted to get a better picture of a nearby star we’d need a telescope with a mirror much bigger than Hubble’s. While Webb’s mirror is bigger, its big difference is that it can see light that is way down in the infrared range. (this is why its instruments need to be kept so cold) To way oversimplify, light coming from distant galaxies is “red-shifted” meaning its wavelength moves further into the infrared range the longer it’s been traveling, so Webb was specifically designed to look at this redshifted light.
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