Or at least something with comparable capabilities.<br /><br /><br /><br />Pros of keeping Hubble going:<li>It can observe in wavelengths not possible from the ground because they would be filtered out by the atmosphere or by James Webb. (I asked in this thread a while back if James Webb could take over all of what Hubble does now. The answer I got was "No." It can't see some of the more extreme wavelengths that Hubble can with the same sensitivity.<li>Weather can't interfere with observations.<li>Ground telescopes need adaptive optics to compete with Hubble's resolution.<br /><br />Cons of keeping Hubble going:<li>Cost of more shuttle trips and the risk of losing another orbiter.<li>Aging structure and other non-replaceable components -- all designed back in the late 1970's or early 1980's. Most those were designed for a previous generation of spy satellites.<li>That pesky primary mirror -- all instruments have to either compensate for its error themselves or rely on something like COSTAR (now removed) to fix the image. Either way, you lose a little capability.</li></li></li></li></li></li> <div class="Discussion_UserSignature"> <hr style="margin-top:0.5em;margin-bottom:0.5em" />Will Pittenger<hr style="margin-top:0.5em;margin-bottom:0.5em" />Add this
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