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submitted 1 week ago* (last edited 1 week ago) by m3t00@lemmy.world to c/science@lemmy.world

how the aliens survive spaceflight

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[-] tyrant@lemmy.world 16 points 1 week ago

That fungus is called Cladosporium sphaerospermum, and some scientists think its dark pigment – melanin – may allow it to harness ionizing radiation through a process similar to the way plants harness light for photosynthesis. This proposed mechanism is even referred to as radiosynthesis.

[-] lime@feddit.nu 5 points 1 week ago

wait, are black people more radiation-resistant?

[-] Egonallanon@feddit.uk 15 points 1 week ago

In terms of UV radiation cuaisng things like sunburn and skin cancer in humans yes.

At the scale when gamma radiation is being thrown around at high levels no.

[-] bluGill@fedia.io 3 points 1 week ago

Maybe slightly - but you are a fool if you test this.

[-] Grimy@lemmy.world 5 points 1 week ago
[-] Poojabber@lemmy.world 1 points 1 week ago

Also, because you are a fool. They are not mutually exclusive reasons.

[-] MajorasTerribleFate@lemmy.zip 4 points 1 week ago

Is the incredible ability "having an anus"? Because that's my first impression from the picture. Goopy martian butthole.

[-] DoubleDongle@lemmy.world 3 points 1 week ago

We need some of that shit growing in our space stations. And maybe we could use to give some of its genes to ourselves to help survive out there

[-] partofthevoice@lemmy.zip 3 points 1 week ago

Can that work? Radiation damages genes in unpredictable ways because its wavelength is smaller than the dna itself, right? How might that work for something more complex than fungi?

[-] m3t00@lemmy.world 2 points 1 week ago

good idea. radiation shielding

I have been talking about exactly this with a friend yesterday.

We were discussing how dangerous space radiation really is. Consider you want to live on Mars. There's about 12 Sievert (Sv) of radiation that you would be exposed to through your lifetime if you lived in a habitat with absolutely no shielding, about 0.41 mSv/day average (Source).

Wikipedia says that a 1 Sv dose is linked to a 5.5% chance to eventually develop fatal cancer (Source). Based on that, 12 Sv would give you a 50% chance of developing cancer throughout your life. (1 - 0.055)^12^ = 0,507...

But is this really a meaningful way of looking at things? I guess there's ways that life could become much more radiation-hardened, if we only knew how. And fungus like the one in the article are to make us understand how.

[-] SaveTheTuaHawk@lemmy.ca 1 points 1 week ago

Garbage website.

this post was submitted on 27 Mar 2026
24 points (100.0% liked)

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