or view
... The main processes of removing mass from the atmosphere are the sputtering of atmospheric species by oxygen pick-up ions at the exobase level, and photochemical escape (Kass & Yung, 1995; Jakosky et al., 1994). The close coupling of all the atmospheric layers makes it interesting to measure the prof ...
... The main processes of removing mass from the atmosphere are the sputtering of atmospheric species by oxygen pick-up ions at the exobase level, and photochemical escape (Kass & Yung, 1995; Jakosky et al., 1994). The close coupling of all the atmospheric layers makes it interesting to measure the prof ...
Observing Jupiter and Saturn with a Vixen 80mm Fluorite Refractor
... Links in the article: www.spaceweather.com www.skymaps.com www.hubblesite.com Sorry about the title, but you know the series of books. In this segment I wish to highlight internet resources that are fun and educational and that provide a wealth of information on astronomy topics. So let’s get to it! ...
... Links in the article: www.spaceweather.com www.skymaps.com www.hubblesite.com Sorry about the title, but you know the series of books. In this segment I wish to highlight internet resources that are fun and educational and that provide a wealth of information on astronomy topics. So let’s get to it! ...
Friends Newsletter August 2008
... cables enabling the high-speed sharing of data. The clusters of dishes will be arranged as a concentric spiral spreading outward. In the Australasian proposal the spiral begins in the NW of Western Australia with two arms of the spiral crossing all of Australia and ending in New Zealand. The complet ...
... cables enabling the high-speed sharing of data. The clusters of dishes will be arranged as a concentric spiral spreading outward. In the Australasian proposal the spiral begins in the NW of Western Australia with two arms of the spiral crossing all of Australia and ending in New Zealand. The complet ...
april 2008 - Holt Planetarium
... Mars and Saturn currently grace our evening skies. Both are easy to find, as they lie close to bright stars in their respective Zodiac constellations. Mars is getting lower each night but can still be spotted just above Castor and Pollux, the heads of the twins of Gemini. In mythology, Pollux and hi ...
... Mars and Saturn currently grace our evening skies. Both are easy to find, as they lie close to bright stars in their respective Zodiac constellations. Mars is getting lower each night but can still be spotted just above Castor and Pollux, the heads of the twins of Gemini. In mythology, Pollux and hi ...
Phoenix (spacecraft)
Phoenix was a robotic spacecraft on a space exploration mission on Mars under the Mars Scout Program. The Phoenix lander descended on Mars on May 25, 2008. Mission scientists used instruments aboard the lander to search for environments suitable for microbial life on Mars, and to research the history of water there. The total mission cost was about US $386 million, which includes cost of the launch.The multi-agency program was headed by the Lunar and Planetary Laboratory at the University of Arizona, under the direction of NASA's Jet Propulsion Laboratory. The program was a partnership of universities in the United States, Canada, Switzerland, Denmark, Germany, the United Kingdom, NASA, the Canadian Space Agency, the Finnish Meteorological Institute, Lockheed Martin Space Systems, MacDonald Dettwiler & Associates (MDA) and other aerospace companies. It was the first mission to Mars led by a public university in NASA history. It was led directly from the University of Arizona's campus in Tucson, with project management at the Jet Propulsion Laboratory in Pasadena, Calif., and project development at Lockheed Martin in Denver, Colorado. The operational funding for the mission extended through November 10, 2008.Phoenix was NASA's sixth successful landing out of seven attempts and was the first successful landing in a Martian polar region. The lander completed its mission in August 2008, and made a last brief communication with Earth on November 2 as available solar power dropped with the Martian winter. The mission was declared concluded on November 10, 2008, after engineers were unable to re-contact the craft. After unsuccessful attempts to contact the lander by the Mars Odyssey orbiter up to and past the Martian summer solstice on May 12, 2010, JPL declared the lander to be dead. The program was considered a success because it completed all planned science experiments and observations.