Thousands of
You can buy one of the following:
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You can buy all of the following:
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1 Acre of the Moon
Cost of an acre of the Sea of Tranquility, from the Lunar Registry for US$37.50 from source -
1 Carl Sagan's Cosmos DVD
Inspirational and wide-appeal science series. Thirteen episodes, each one hour long. for £11.71 (US$17.96) from source -
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1 A life-sized human made of tap water
A life-sized human made of tap water for £0.09 (US$0.14) from hardcoded