File:593419main pia14834-full full Mars Science Laboratory Guided Entry at Mars.jpg
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[編輯]描述593419main pia14834-full full Mars Science Laboratory Guided Entry at Mars.jpg |
English: Mars Science Laboratory Guided Entry at Mars, Artist's Concept
This artist's concept shows thrusters firing during the entry, descent and landing phase for NASA's Mars Science Laboratory mission to Mars. The entry, descent, and landing (EDL) phase begins when the spacecraft reaches the Martian atmosphere, about 81 miles (131 kilometers) above the surface of the Gale crater landing area, and ends with the rover safe and sound on the surface of Mars. Entry, descent, and landing for the Mars Science Laboratory mission will include a combination of technologies inherited from past NASA Mars missions, as well as exciting new technologies. Instead of the familiar airbag landing of the past Mars missions, Mars Science Laboratory will use a guided entry and a sky crane touchdown system to land the hyper-capable, massive rover. The new entry, descent and landing architecture, with its use of guided entry, will allow for more precision. Where the Mars Exploration Rovers could have landed anywhere within their respective 93-mile by 12-mile (150 by 20 kilometer) landing ellipses, Mars Science Laboratory will land within a12-mile (20-kilometer) ellipse! This high-precision delivery will open up more areas of Mars for exploration and potentially allow scientists to roam "virtually" where they have not been able to before. In the depicted scene, thrusters on the backshell of the spacecraft's aeroshell are firing to adjust the orientation of the spacecraft during the guided entry maneuvers. The rover (Curiosity) and the spacecraft's descent stage are enclosed inside the aeroshell during this passage through the upper atmosphere of Mars. |
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來源 | http://www.nasa.gov/mission_pages/msl/multimedia/gallery/pia14834.html |
作者 | NASA/JPL-Caltech |
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[編輯]Public domainPublic domainfalsefalse |
本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zh,NASA版權政策或JPL圖像使用政策) | ||
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目前 | 2011年11月4日 (五) 21:09 | 2,500 × 1,406(240 KB) | Pline(留言 | 貢獻) |
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