Credits: NASA
Credits: NASA
1)Pluto's Moons, Nix and Hydra, may have been captured.
冥王星小衛星可能為捕獲天體.
http://arxiv.org/abs/0802.2951
Credit: SpaceWorks/SpaceDev for The Planetary Society's Apophis Mission Design Competition
Credit: SpaceWorks/SpaceDev for The Planetary Society's Apophis Mission Design Competition
2)"Foresight" Wins First Prize in Apophis Asteroid Tagging Competition.
追蹤高危近地小行星計劃.
http://www.planetary.org/program ... pdate_20080226.html
香港天文學會
月球行星組 |