Ken Murphy / 6:33 pm February 14th, 2002

Space.com
“Lunar Love: New Calculation Shows Moon’s Heart is all Mushy”
02/14/02
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Ken Murphy / 3:12 pm February 1st, 2002

Seboldt, W. et al
“A Review of the Long-Term options for Space Exploration and Utilisation”
esa bulletin 101
02/2002
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