lecture15 - Astronomy Picture of the Day Outburst of Comet...

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Unformatted text preview: Astronomy Picture of the Day Outburst of Comet Holmes Announcements Midterm exam on friday Leave all backpacks, bags, etc., at the front of the room Seating chart is now posted on the class web site: you must look at this in advance so you'll know where to sit! UCI Observatory Visitor Night Friday night, Nov 2, 8:00-10:00 Open to the public- bring friends! Walk there from campus, or take a shuttle bus from the ICS/Engineering Parking structure (corner of E. Peltason and Anteater) See http://www.physics.uci.edu/~observat/visnite.html 1 A TO JOHN WAYNE AIRPORT TO I-405 2 3 TO I-405 4 STANFO RD AVE . 5 6 7 8 9 10 TO CULVER DR. AND I-405 11 12 A HA RV AR DA VE. NO RT H OR E E B RD. 90 B RID CAM 94 ARBORETUM P US 1 93 92 91 MESA COURT FIELD D R. AV E. GE R NORTH CAMPUS STA D. NF OR D AR R CT 84 54 37 AV2 85 OY O DR . B AN ST RD FO B E R K ELEY JAM B 95 96 5 2 4 21 47 AV1 AV3 39 86 87 91 97 14 3 80 PE R L C ORN E UNIVERSITY CENTER L M CA PU S . DR 29 46 28 23 36 38 C TO SR73 90 98 SAN JOAQUIN FRESHWATER MARSH RESERVE (UC NATURAL RESERVE SYSTEM) MESA COURT HOUSING M 14A 45 1B 34 22 1C 21 23 4700 ARROYO VISTA HOUSING N OR 88 D RA EI R. CA ES A . RD 49 95 96 ARC 97 PS4 27 VISTA DEL CAMPO HOUSING TO CULVER DR. C LIF SO. VERA E AV IA E. P AS ELT 2 917 59 MS 40 44 728 725 58 727 21 20 13 17 1 58 79 4 3 720 721 722 715 712 710 726 714 718 PEREIR 113 111 A D R. 2 1 SSPS 7 VERANO PLACE HOUSING 3300 NO R . W. PELTASON D. 24 ON DR . 30 26 31 D U V NI ER SI TY . DR 915 VISTA FIELD 913 723 3 231 221 230 210 215 3A BP 711 713 233 232 103 613 610 5 12 Bren Events Center 901 6A 105 600 101 102 911 907 900 902 625 18 611 615 514 212 211 203 11 201 200 202 213 E PER IRA DR . 6537 6 25 20 fo Cali 682 57 6533 81 19A 5 236 23 51 680 35 ANTEATER RECREATION CENTER PLAYING FIELDS 82 DR . AD OB D EC IRC LE rnia 32 234 238 34 33 684 626 627 CALIF . RD 35 17A TO SR73 CRAWFORD ATHLETICS COMPLEX 909 CRAWFORD FIELD 601 560 603 905 31 7 E 903 904 8 19 80 A AC MEDICAL PLAZA DR . DE M Y 521 812 302 304 400 401 7 25 26 EW S. CIRCL E VI 18C 520 800 810 802 811 825 827 821 813 815 A W. PELT 33 503 518 13 E. T CT. BER CT. LL P T EL AS DEM Y WAY 6 522 6 27 501 317 323 313 311 8 321 312 310 314 ON AC A 18R 919 516 512 ICS/ ENG DR BECKMAN CENTER 506 502 ALDRICH PARK 500 Engineering Parking Structure 204 9 10 MIDDLE EARTH HOUSING 22 PALO V E R D . E RD 93 89 91 PALO VERDE HOUSING 18C 40 . CA LI 303 305 315 319 18D Anteater 94 41 92 E FO IA RN O RNIA 90 . AVE AVE. (UNDER CONST S O U T H E R N R AD I A L ( U N D E R G CONSTRUCTION) TE ST. I ST . INN O ATI OV N 841 833 831 16B CAMPUS VILLAGE HOUSING 16AW 515 12A 16AE 12B 15A 29 16 55 56 829 81 817 415 HEALTH SCIENCES 837 839 HE OW 84 53 G B 897 899 . AV E B L AKE VI CT. RG EN AL CT . C IL 835 LAS LOMAS CT 30 31 O TH MP SO NC T. M 15B INS CT. RK PE Ga GA UR RU F RO S T GA B ST. BR I AS 18B BRON F AK UNIVERSITY RESEARCH PARK 417 411 NO 80 28 LI 402 801 30 W 517 413 AY 325 SCHU RU FU E R T E S ST. O KEEFFE ST. A 820 32 E SS LL PL . MUR A S A KI ST. E SS E TO CULVER DR./ BONITA CANYON RD. RUC F TIO N) UNIVERSITY HILLS M EN DEL C T. T ON C . WT br AIN ST. TW iel ZO LA ino . EY IN O DR Observatory LEGEND S ON D R. RI EL . 50 T CT. OT . CT T. 843 HT ON CT E. PE VE TM TH C H JO AQ U CP IN HI LL ST W RA NS PO RT AT IO D NC E F H UNIVERSITY RESEARCH PARK 52 41 HARV CA 40 EY ns tru are ctio a n WHITMA N BIOMEDICAL RESEARCH CENTER AN Y E Y OR . CT . BIS 48 LTA SON CK ENS D R. CT. . . CT UR 83 V BS CT. GIB O AB IST R. AD NIT E UR Y CT . 1 URE Y 83 82 CU DI C RI E CT. NE G . HI W CAL IF O RN BUILDINGS BUILDING SITES PARKING LOTS ALT HS OWENS DR . IA CIE E AV NC ER D. OU NG . CT LI R FO NI A A 2 DISABLED PARKING AVAILABLE WALKWAYS FOOTBRIDGES BUS STOPS INFORMATION BOOTHS/ PARKING PERMITS SHUTTLE STOPS EL IOT CT . HA ND EL JO . I 1 2 MCCL OC INT K Co CT . (SR . SA H N C T. HA LE IST R . CT RVE Y C LOS TRANC OS D R . WH LO KE C T. T. IS TL C ER OR CT. RID OR CT 73) TO Y C CE T BA R 1 EMERGENCY PHONES K CT. I 9 10 11 12 3 4 5 6 7 8 Mars Martian geology Less volcanic activity than the Earth (Mars cooled more quickly due to its small size) No plate tectonics: the crust is rigid No mountain ranges or chains of volcanoes Very little erosion- atmosphere is thin and there is no liquid precipitation Martian soil: Mostly silicon dioxide (i.e., sand), but with about 13% iron oxide, which gives Mars its rusty color Volcanoes Several huge volcanoes on Mars Olympus Mons: the largest volcano in the solar system 600 km across, 24 km high Mars's volcanoes aren't totally extinct, but aren't currently activewe've never seen an eruption take place Valles Marineris: a 4000-km long, 7 km deep canyon Impact craters: The Victoria Crater, about 730 meters across Close-up view of a part of the Valles Marineris, showing eroded hillsides Evidence for liquid water Evidence for liquid water Mars missions 1964-1969: Mariner 4, 6, 7- Mars flybys 1971: Mariner 9- first Mars orbiter 1976: Viking 1 and 2 landers 1997: Mars Pathfinder & Sojourner rover The Sojourner rover View from the Viking 1 Lander Current missions Spirit and Opportunity rovers: still going, since 2004 Mars Odyssey- orbiting since 2001 Mars Express- orbiting since 2003 Mars Reconnaisance Orbiter- orbiting since 2006 Phoenix: a lander, launched in 2007 will study the atmosphere and soil Future: Mars Science Laboratory, a super-rover (2009 launch) Mars landers Spirit and Opportunity Life on mars? If Mars had a warmer climate, a thicker atmosphere, and liquid water in the past, could it have harbored life? Viking spacecraft in the 1970s were desigend to examine martian soil chemically to search for microorganisms No evidence found for life Soil scooped up by Viking 1's robotic shovel arm Rocks from Mars 34 meteorites found on Earth are known to have originated from Mars- probably blasted out during large impact events Mars origin is based on measurements of the rocks' chemical composition and trapped gases inside the rocks The martian meteorite ALH84001: evidence for life? 1996: study of a martian meteorite found in Antarctica found interesting suggestions of possible microbial life: globules of carbonates, from water flowing through rock complex hydrocarbons: signs of decaying organisms? magnetite: a mineral formed by bacteria on earth possible fossils of tiny bacteria? carbonate globules mineral formations or bacterial fossils? However: today most scientists believe that these formations were not biological in origin. ...
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This note was uploaded on 04/20/2008 for the course PHYS 20A taught by Professor Staff during the Fall '02 term at UC Irvine.

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