Closer to Encounter; Extra-terrestrial Life  

Oleh:

[s.n]

Jenis: Article from Bulletin/Magazine
Dalam koleksi: The Economist (http://search.proquest.com/) vol. 404 no. 8796 (Aug. 2012), page 62-64.
Topik: Space Exploration; Extraterrestrial Life; Mars; Research; Government Agencies

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Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.73 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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If Martians exist, then any in the vicinity of Gale Crater on the Martian equator are in for a treat. On August 6th, assuming its complex landing system works, a plutonium-powered rover the size of a car will be set down on the surface. This is NASA's Mars Science Laboratory (MSL), the biggest and most sophisticated rover sent anywhere in the solar system. It is going to Mars for several reasons, but the most publicised part of its mission is to continue the hunt for signs of extra-terrestrial life. There are reasons to believe that the Red Planet was not always as barren. Data from previous missions left planetary scientists convinced that, in its distant past, Mars was much wetter than it is today. Water is widely thought to be vital for life, thanks to its properties as a solvent. A thicker atmosphere, less eroded by the solar wind, might have allowed large bodies of water to persist for long periods on or near the surface.

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