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this post was submitted on 08 Apr 2026
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Science Memes
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You've only ever seen photographs of one planet with oceans and landmasses, and that's Earth. The only other celestial body that has a solid surface with liquid on it that we've taken pictures of is Saturn's moon Titan. Titan has a thick opaque atmosphere so we don't have true-to-life pictures of the surface from space. We've got images constructed from radar scans, and this amazing image taken from the surface by the Huygens probe that hitched a ride with Cassini. The hydrocarbon lakes of Titan look like...blobs on a circle.
Every other planetary surface you've seen is rocky dirt, icy dirt, straight-up ice, cratery dirt, or opaque gas clouds. Any "earth-like" planet you've ever seen is a fictional artist's conception. And ain't no human artist who knows shit about plate tectonics compared to the Earth herself, so they draw weird shit that ain't quite right somehow.
Wait this is so true, and I've never even thought about it. Space photography has a lot of pictures from the Moon, Mars, and Venus (I've never seen those Titan photos, so thank you for the link), but there are no "real" photos of a planet with oceans. That might be where the "uncanny valley" kicks in, with my brain going "this doesn't look quite right". I do get a similar feeling when I see AIgen videos, so you might be onto something!
Venus is difficult to photograph for the same reason as Titan, thick opaque atmosphere. We've got radar imagery of Venus, plus the Soviets landed some probes and took a few pictures of the actual hell that surface level Venus is.
We can actually get a pretty good look at Mars from here; This is a picture of Mars taken with Hubble. We have active missions in orbit and on the surface of Mars as well so we can look at it as close as we want.
Meanwhile, this is the best Hubble could do with Pluto. And that's still inside our own solar system, we're not getting any photos of the surface of Earth mass planets around other stars.