2. From competition to cooperation (ie: Intl space station)ISSIn 2000’s future manned space missions by china, Russia, japan and india and European union advaocated mission to moon and mars <br />From the 1990’s private interests began to promote tourism and private space exploration..<br />SETI…co-founded in 1984 by carl sagan….over 150 scientists today…nonprofit corporation…was funded in 1971 ny NASA to search radio frequencies for signals geing transmitted from outside the solar system. <br />Mission to explore understand and explain the origin, nature and prevalence of life in the universe. …sponsored by: Hewlet Packard, Alfred sloan foundations<br />Astrobiology growing 21st century..ist European may 2001<br />Digital Arecibo Puerto rico message as an attempt to contact extrterrestials<br />Worlds largest radio telescope- <br />3 exoplanets being orbiting a star 140 lite years away, arrows show size of motion over a 4 year period….Keck observatory Hawaii<br />Hubble telescope viewing exoplanets since 1990..within 4 years of new camera installed on hubble more than 500 galaxies at 950 mill years after the big bang was found. …trying to get closer to the stars and galaxies….<br /> <br />Current research: <br />Biology & chemical<br />Creatures w/out support of sunlight<br />Life on other planets that have a different chemical makeup<br />(6 elements: Carbon, Hydrogen,o2, sulfer, nitrogen, phosphorus-arsenic)<br />NASA researcher: assumptions … bacteria that can thrive on arsenic…opens new pathway for life on other planets…finding life can suprize us.<br />Geology:<br />Deep Space Missions: hubble and Spitzer space telescopes <br />The European Northern Observatory was initiated in the canary islands by representatives Spain, Sweden, Denmark United Kingdom. Germany, Italy, Norway, the Netherlands, Finland, Iceland, United States... Founded in 1959. First light was achieved in 1964. <br />KECK Observatory…largest optical telescope…enourmous light gathering ability<br />Mauna kea Hawaii…1992<br />Habitable zone: distance from a star where an earth like planet can maintain liquid water on its surface and earth like life. …<br />Bottom line: requires liquid water to sustain life as we know it. (Jupiters moon—Europa ---Saturn’s moon Enceladus)<br />Euopa..subsurface liquid water<br />Enceladus, liquid water near its surface<br /> <br /> <br />