Can an 18-inch telescope resolve an Earth-like exoplanet?

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Apparently there's something called the pale blue dot project that needs funding to image an Earth like planet in a nearby star system. I asked them of the lens diameter and they replied that the telescope will use a 18" mirror. Is that enough resolution wise? Seems a little small when you compare it to James Webb or other planet searching telescopes.
 
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kolleamm said:
Apparently there's something called the pale blue dot project
some references to what you have been reading would be good :smile:
 
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Sorry I think it's called project blue my mistake anyways here is what my question is on.
 
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Apparently this is a crowd sourced attempt to develop and launch a space telescope dedicated to finding a hospitable planet around Alpha Centauri.

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They're currently trying to raise $175,000 to define the project and establish industry relationships. The mission is expected to cost around $50 million and they're projecting a 2021 launch. Seems a bit ambitious to me.
 
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In my opinion though a 18" mirror is not even close to what's needed to image an exoplanet. I'd like to invest in this but I'm fairly skeptical.