this post was submitted on 23 Apr 2026
904 points (99.8% liked)
memes
21000 readers
5198 users here now
Community rules
1. Be civil
No trolling, bigotry or other insulting / annoying behaviour
2. No politics
This is non-politics community. For political memes please go to !politicalmemes@lemmy.world
3. No recent reposts
Check for reposts when posting a meme, you can only repost after 1 month
4. No bots
No bots without the express approval of the mods or the admins
5. No Spam/Ads/AI Slop
No advertisements or spam. This is an instance rule and the only way to live. We also consider AI slop to be spam in this community and is subject to removal.
A collection of some classic Lemmy memes for your enjoyment
Sister communities
- !tenforward@lemmy.world : Star Trek memes, chat and shitposts
- !lemmyshitpost@lemmy.world : Lemmy Shitposts, anything and everything goes.
- !linuxmemes@lemmy.world : Linux themed memes
- !comicstrips@lemmy.world : for those who love comic stories.
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Mars has river deltas. It has flat plains. It has shifting rolling dunes. It has mountains and valley. It has a twisting series of canyons so constricted they're called the Labyrinth of Night. It has vast ice sheets and polar caps of frozen carbon dioxide and water. It has caves and frozen mud flats and a thousand other varied forms.
Mars is a world. It is a place. It has biomes as varied and unique as those of Earth.
There are more things in Heaven and Earth than are dreamt of in your philosophy.
Well, not exactly biomes. That one it doesn't have.
Mars may have "river deltas", but without the river.
Suuure. A biome is a geographical region with a specific climate, flora and fauna. Mars doesn't have much climate because it has very little atmosphere, and it has no flora or fauna. There's no way in hell that it has biomes as varied as earth.
They are more subtle, but they are there. And it does have an atmosphere. It's substantial enough that communication to the surface can be lost for months due to planet-spanning dust storms. Yes, it's only 1% the pressure of Earth's at the surface, but that's enough, especially when you allow forces to act over geological time scales.
And yes, they can be as varied as those on Earth. Life doesn't actually increase the biome variety as much as you think it does. The kind of life you get in any given biome on Earth is a direct function of the geology and climate in the area. Input a given altitude, rainfall, temperature, and soil conditions, and you'll get a similar biome anywhere on Earth. Yes, there are different individual species in the rain forests of South America vs the rain forests of Africa, but they're both rain forests. They work as biomes in similar ways. Wherever the local climate and geology support rain forests, rain forests sprout up. The only exception is isolated islands that can't be reached by certain species.
This is why Mars can have the same biome diversity as Earth. The living components of Earth's biomes are a direct mapping to the nonliving components. Earth's living biomes are no more diverse than the underlying geology and climate.
And this is before we even consider Martian life forms, which almost certainly exist. We know of bacteria that exist deep in the Earth's crust that, if you transported them to deep under the Martian surface, would be able to survive and thrive just fine with zero modification. We know Mars used to have vast oceans and all the ingredients necessary to get life started. And we've seen numerous bits of circumstantial evidence of bacterial life present in some capacity on Mars today. While scientists are loathe to affirmatively proclaim life on Mars. The extant existence of bacterial life on Mars today really isn't that an unusual claim. If life could get started on Earth, there's no reason to believe it couldn't have started on Mars. And that's before you consider pansperia. If nothing else, we know life can comfortably exist deep in the planet's crust. And who knows how such life might affect conditions on the surface.
Mars has no biomes because Mars has no known life. You can't skip the "bio" part of the word.
It might have had biomes in the past, but that's a different discussion. There's no evidence of life currently existing on Mars.