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Planetary Society Offers $50,000 Prize for Asteroid Tagging Designs
Asteroid geostationary
2006/12/20
December 13. 2006,Apophis is an approximately 400 meter near-Earth object (NEO), which will come closer to Earth in 2029 than the orbit of our geostationary satellites. On that pass, the asteroid wil...
5 December 2006，The Planetary Society, which had long advocated the construction of a lunar outpost as a "way station" on the road to Mars, welcomed the NASA proposals. Nevertheless, Planetary Society...