彗星に着陸せよ! 探査機フィラエが挑んだ57時間の軌跡 (1) 栄光のハレー艦隊と、彗星探査に賭けた欧州の想い

参考

・http://sci.esa.int/giotto/
・http://sci.esa.int/giotto/31876-halley/
・http://sci.esa.int/rosetta/47366-fact-sheet/
・http://www.esa.int/Our_Activities/Space_Science/
Rosetta/Europe_s_comet_chaser
・http://www.esa.int/Our_Activities/Space_Science/
Rosetta/New_destination_for_Rosetta_Europe_s_comet_chaser