BIOL-104 Lecture Notes - Lecture 28: Fossil, Polycyclic Aromatic Hydrocarbon, Phytogenics
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*most of this lecture just really went way over my head. The first image of mars was taken in 1960-something and it flew by and took pictures. Craters meant little water, plate tectonics, and hydrolicsystems. Did(cid:374)"t sho(cid:449) life o(cid:374) mars, (cid:271)ut people thought there might be! Mars appare(cid:374)tl(cid:455) had a(cid:374) at(cid:373)osphere a(cid:374)d e(cid:374)(cid:448)iro(cid:374)(cid:373)e(cid:374)t si(cid:373)ilar to earth"s at first (cid:271)ut the(cid:374) changed differently. (cid:862)orga(cid:374)is(cid:373)s (cid:449)ith a(cid:374) i(cid:374)terest i(cid:374) the (cid:272)o(cid:374)ser(cid:448)atio(cid:374) of heat a(cid:374)d (cid:449)ater (cid:373)a(cid:455) sele(cid:272)t larger sizes(cid:863) . Gsms found no organics except chloromethane and dicholomethane (cleaning fluids?) Hard to make sense of other results. Experiments designed to detect metabolism involving organic molecule. All three assumed that we would be able to culture any martian organisms that were present. We can only culture less than 1% of the organisms on earth, so we still could have been missing some form of life. We fou(cid:374)d a ro(cid:272)k that"s 4. (cid:1005) (cid:271)illio(cid:374) (cid:455)ears old.
