Quote:
Originally Posted by polak
Light has to go from the sun to this far out body, then back.
Not a lot of light, hitting a far away object that has to come back and hit our telescopes.
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That doesn't seem to make a lot of sense. The solar system is 9 billion KMs across. Light travels over a billion KMs per hour. If we were on Pluto, and this planet was on the other side of the solar system, it would take less than a day for light from the Sun to reach it and bounce back to Pluto. Please correct me if I'm wrong on this, physics/math was not my strong suit.
Is it simply that it's orbit would take hundreds of years and we just haven't been looking that way for very long? I understand that space is impossibly huge, but we can see galaxies and the beginnings of the universe, but not this planet revolving around our own Sun?