I recently saw a post regarding the discovery of a new nebula by a hobbyist. I would like someone to explain how this is possible given the thousands of satellites we have.
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Somewhere around 95% is undiscovered. Pretty much all of our satellites are for something other than observing space, and our telescopes are getting more powerful, making more things observable within observable space. Plus, looking at things very far away takes a lot of time, because there’s not a lot of light headed from that thing directly to us, so we have to wait for enough light to come to make a lm image.
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