PCS 182 Lecture Notes - Lecture 6: Polycyclic Aromatic Hydrocarbon, Robotic Spacecraft, Allan Hills 84001

• School: Ryerson University
• Department: Physics
• Course: PCS 182
• Professor: Margaret Buckby

Document Summary

Extremophiles high salinity, very acidic / very alkaline ph: and they survive- 2000 c to 1500 c, can survive, radiodurans. Extremophile environments: undersea volcanic activity releases hot water (~80c), methane, sulfur, carbon monoxide used by extremophiles for their life processes no free oxygen anaerobic life forms, sheets of ice at high altitude / latitude . Their molecules destabilize in a low-salt environment: extreme ph, organisms live at ph 0 to 14, low ph values are acid (sulfuric acid, lemon juices, neutral is ph7 (water,milk, high values are alkaline (ammonia, lye) Spermia ~ seeds: (cid:862) eeds e(cid:448)e(cid:396)(cid:455)(cid:449)he(cid:396)e, contentious hypothesis. Seeds of life are throughout a galaxy: (cid:862)seeds(cid:863) a(cid:396)e ge(cid:396)(cid:373)s, spo(cid:396)es, a(cid:374)d o(cid:396)ga(cid:374)i(cid:272) (cid:373)ole(cid:272)ules fou(cid:374)d i(cid:374), meteorites, comets. Intentional spreading of bio-material to other planets by humans or an advanced extraterrestrial civilization. They are molecules considering of an amino acid group (nh or nh2 ), a carbonoxyl. Group (cooh), a central carbon atom with an attached.