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主題: 可探測的小行星 可能越來越多有兩倍 作者: peter 於 2015-02-12 13:20:14 http://www.universetoday.com/118914/the-number-of-asteroids-we-could-visit-and-explore-has-just-doubled/#more-118914
(http://d1jqu7g1y74ds1.cloudfront.net/wp-content/uploads/2015/02/neo_orbit_types-580x390.jpg) (http://[img]http://d1jqu7g1y74ds1.cloudfront.net/wp-content/uploads/2015/02/nhats_neas_s-580x435.jpg)[/img] NHATS = Near Earth Object Human Spaceflight Accessible Targets Study http://neo.jpl.nasa.gov/nhats/ |