Viking I Mars Landing, July 20, 1976

Viking I Mars Landing, July 20, 1976


On July 20, 1976, the Viking 1 spacecraft landed on Mars to end a 500 million-mile journey. About 2 a.m. Eastern, the lander separated from the orbiter and, protected by a heat-shielding aeroshell, made its hazardous descent through the thin Martian atmosphere at nearly 10,000 miles per hour. Immediately after touchdown, the lander's camera took the first picture ever shot from the surface of Mars and relayed the historic image back to Earth.
Two months later, on Sept. 3, 1976, Viking 2 settled on Martian soil.
In the following years, the two Viking spacecraft conducted experiments studying atmospheric and soil composition, meteorology and seismology and providing a catalog of more than 50,000 images of Mars from orbit and planet’s surface.
ftp://ftp.hq.nasa.gov/pub/pao/tv-advisory/nasa-tv.txt

火星から来た隕石ALH84001

A Younger Age for ALH84001 and Its Geochemical Link to Shergottite Sources in Mars
火星隕石ALH84001のより若い年代と隕石シャーゴッタイトの火星起源との地球化学的関連性
：Lu-Hf同位体データから、ALHは約 40億年前の火成岩で、１億5000-5億7000万年前のシャーゴッタイトマグマと同じマントル由来と推定され、火星ではほぼ40億年間火成作用があっ たことが示唆された。
Lapen et al. 328 (5976): 347 -- Science
http://www.sciencemag.org/cgi/content/short/328/5976/347
正式名称ALH84001 通称「アラン・ヒルズ隕石」
火星から来た隕石と「生命の痕跡」 | WIRED VISION
"『Science』誌の4月16日号に掲載された最新の分析では、アラン・ヒルズ隕石を40億9100万年前のものと推定している。"
http://wiredvision.jp/news/201004/2010042323.html

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Earth microbes may contaminate the search for life on Mars
http://www.sciencedaily.com/releases/2010/04/100427111252.htm
Earth microbes may contaminate the search for life on Mars | Mars Today - Your Daily Source of Mars News
http://www.marstoday.com/news/viewpr.html?pid=30710

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NASA Orbiter Penetrates Mysteries of Martian Ice Cap - NASA Jet Propulsion Laboratory
http://www.jpl.nasa.gov/news/news.cfm?release=2010-180
Observatory - New Evidence on Mars Formations - NYTimes.com
http://www.nytimes.com/2010/06/01/science/01obmars.html

火星の北極冠のなぞ　MROが明らかにした北極冠の下にある構造
最初に渦巻き模様と溝をつくったのは風
http://www.astroarts.co.jp/news/2010/06/04martian-ice-cap/index-j.shtml

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Mars Science Laboratory, the Next Mars Rover
http://www.nasa.gov/mission_pages/msl/index.html


Mars Exploration Program Landing Sites
"New Prospective Landing Sites"
http://marsoweb.nas.nasa.gov/landingsites/index.html

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MAVEN - Mars Atmosphere and Volatile Evolution Mission
http://lasp.colorado.edu/maven/