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According to this article:

https://www.theguardian.com/science/2018/jul/26/star-spotted-speeding-near-milky-way-black-hole-for-first-time

the Very Large Telescope is "powerful enough to see a tennis ball on the moon from Earth". I guess that the moon is much to bright and moves too fast for the VLT to take good pictures of it, but it got me wondering: what is the most magnified picture of the moon ever taken from Earth?

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    $\begingroup$ I assume you mean taken from Earth. Lunar landers will have taken some very close-up photos $\endgroup$ – Steve Linton Jul 27 '18 at 11:11
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    $\begingroup$ One further comment. "Most magnified" is not really a helpful way to think of it. If I took a picture with my phone, but then blew up one pixel of it until it was the size of Manhattan, that photo could be very magnified, but it would contain very little detail. What an astronomer would care about is the "highest resolution" photograph (ie the one where the smallest distances on the moon can be distinguished). $\endgroup$ – Steve Linton Jul 27 '18 at 14:51
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    $\begingroup$ I'm guessing google.com/moon uses the highest-res images available, so poke around there to see what resolution(s) they're using (they may be using different resolutions for different parts of the moon) $\endgroup$ – user21 Jul 27 '18 at 17:34
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    $\begingroup$ However, if you search for "Can we see the Apollo landing sites" then you get the answer no even though many items larger than a tennis ball were left behind. scienceabc.com/eyeopeners/… $\endgroup$ – badjohn Jul 31 '18 at 16:49

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