What we already knew: survival in space + survival on reentry

16:30space, most of it should be dead. That's the prevailing theory. This experiment is putting that it it's challenging it. Okay. Right? All right. Science is always a process. >> Yeah. And sometimes things get >> it's a totally reasonable thing >> Yes. to be like, "Hey, a meteor impact is like several atomic bombs. >> Yes. Okay. What what are we talking about? >> 100%. >> Right? 100%. So, okay, let's talk about this um elusive bacterium, D. radiodurans. Okay? Why is it the right test subject for this avenue of research? Okay? Well, for a lethal dose for a human being, lethal dose being like, you know, 50% of us are going to die,

17:12it's about four grays. Gray is like the unit of radiation that you get. Chernobyl, Glenn. I just I just want to you to know that I don't know if you knew this, that grays are one of the species of aliens that people think are visiting Earth. Oh, really? The 4-ft ones that have the big eyes. The classic. So, only four of them will kill us. Okay. Yes. >> According to >> According to According to the study. Uh according to um what we've done radiation studies on, four grays will kill us. E. coli takes 70 grays. >> Okay. Okay? D. radiodurans takes 15,000. Yeah, that's a So, it can survive 3,000

17:53times the human exposure and 200 times the E. coli exposure. This thing is insane. That's why it's called Conan the the bar barbarian >> the No, Conan the bacterium. >> The Conan the bacterium, yeah. So, even those 4-ft aliens, yeah, 3,000 times the dose of those 4-ft aliens. >> That's how they got here. That's how they got here, dude. On the backs of radiodurans. Now, why is that the case? This This bacteria is amazing. Okay. >> For one, in terms of DNA repair, it's got astonishing fidelity, okay? It reassembles its genome, which can be shattered into hundreds of fragments by

18:34radiation, within 3 to 5 hours. That's unbelievable. >> Like I dose it with 5,000 grays, which is again 1,000 times what humans can take, >> Yeah. within 3 to 5 hours, its genome is back. It's like the science fiction thing, That's unbelievable, especially after