To estimate the number of alien worlds, Dr. Cassan and his colleagues studied 100 million stars between 3, 000 and 25, 000 light-years from Earth with gravitational microlensing.

WSJ: Galaxy Hosts 100 Billion Planets, in New Estimate

In other words 10 people in an office will spend a couple of million pondering some maps while the billions from the sale of the worlds Oil Fields remain safe in the bank.

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Twenty million people world-wide have visited Von Hagens' plastination exhibition, Body Worlds.

BBC: NEWS | Health | Preserved body slice on display

Many are spending their time in the highly hierarchical game worlds of Lineage and Lineage II, which have active populations exceeding 2 million.

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