> Science has so far conclusevly proven the existence of 17 planets outside of our solar system. This is done by identifying the "wobble" in the star's position due to the planet's gravity, and also by predicting when the planet will pass infront of the star, dimming it.
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> I imagine it will be several decades before decent images of a distant planet appear, or any images at all.

Sorry. It's been done. A while back, there was a picture taken of the silhouette of a Jupiter-sized planet. That's pretty conclusive, I think.

Sundragyn.