NATS 1745 Lecture Notes - Lecture 14: Martian Soil, Extremophile, Solar Mass

• School: York University
• Department: Natural Science
• Course: NATS 1745
• Professor: Robin Metcalfe

Document Summary

1969: a camera that had been left on the moon for 2 years contained bacteria from earth that had su(cid:396)(cid:448)i(cid:448)ed the moo(cid:374)"s ha(cid:396)sh (cid:272)o(cid:374)ditio(cid:374)s. this p(cid:396)o(cid:448)ed that o(cid:396)ga(cid:374)is(cid:373)s (cid:272)a(cid:374) su(cid:396)(cid:448)i(cid:448)e i(cid:374) spa(cid:272)e. It was suspected that there were animals living on the moon but after landing on the moon we figured that the moon is lifeless because it has to atmosphere to protect it from the sun. Life cant evolve on the moon but it can sustain itself. E(cid:454)t(cid:396)e(cid:373)ophiles: lifefo(cid:396)(cid:373)s (cid:449)hi(cid:272)h (cid:272)a(cid:374) su(cid:396)(cid:448)i(cid:448)e e(cid:454)t(cid:396)e(cid:373)e (cid:272)o(cid:374)ditio(cid:374)s (cid:894)(cid:272)o(cid:374)ditio(cid:374)s that (cid:272)a(cid:374)"t sustai(cid:374) human life). Extremophiles are the most likely forms of life to be found on other planets or moons in our solar systems. Habitable zone (hz): the distance from a star at which a planet can sustain liquid water on its surface (a necessity for carbon-based life). O(cid:374)l(cid:455) ea(cid:396)th is (cid:449)ithi(cid:374) ou(cid:396) su(cid:374)"s ha(cid:271)ita(cid:271)le zo(cid:374)e.