LMR-082 · Life
Extremophiles
Earth life that survives boiling acid, radiation, and vacuum. The bar is low.
§ A first look
§ Depths
Six ways into the same idea — from bedtime story to chalkboard. No order required.
L1 · Crayon
Told like a bedtime story.
For a curious 10-year-old. No jargon. Just a picture in your head.
On Earth, there are tiny living things — too small to see without a microscope — that live in places you'd think nothing could possibly survive at all. Inside boiling-hot springs. Deep down in solid rock. In water saltier than the saltiest sea. Even in the radioactive pools at nuclear power plants. These tough little survivors are called extremophiles. They matter for space because they hint that life might be able to live in some of the harsh places we've found on other worlds. Life is, embarrassingly, hard to get rid of.
§ Strange but true
- 01Bacteria thrive in boiling acid, frozen ice, nuclear reactors, and 11 km under the ocean.
- 02Tardigrades survive the vacuum of space, lethal radiation, and being boiled. They've been to the Moon.
- 03If life can live here in conditions this awful, the line for 'habitable' just moved a lot.
§ From the field journal
Extremophiles
"Earth life that survives boiling acid, radiation, and vacuum. The bar is low."
— observed, sketched, not yet fully understood.
§ Nearby
Constellations near Extremophiles
→
Habitable Zone
The 'not too hot, not too cold' orbit. Earth is in it. Probably others are too.
→
Moons
Some are bigger than planets. Some have oceans under ice.
→
Biosignatures
Chemical fingerprints of life. JWST is sniffing for them right now.
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Panspermia
Maybe life didn't start here. Maybe it hitched a ride.