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direct social and physical impact of comet debris during the holocene and long term impact ...
Category: Science\Anomalies and Alternative Science\Catastrophism

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scientists at Cornell University will answer your astronomy questions.
Category: Science\Astronomy\Ask an Expert

International Space Agency (ISA) (Popularity: )

International Space Agency (ISA) - International Space: Administration, Exploration, Operations & Spaceflight, Stations & Bases, ...
Category: Science\Aeronautics and Aerospace\Organizations

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Manned missions to Mars, Jupiter, Saturn, and all the outer planets are now possible thanks ...
Category: Science\Aeronautics and Aerospace\Propulsion

SpaceRef.com (Popularity: )

Includes U.S., EU, and Asian space news, briefs, and photos. A reference site that also ...
Category: Science\Aeronautics and Aerospace\Space

Space Buffs (Popularity: )

A news and discussion community for astronomy and space travel enthusiasts.
Category: Science\Astronomy\Solar System

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Weblog and portal providing news commentary about the exploration and development of space with exclusive ...
Category: Science\Aeronautics and Aerospace\Space

Innovative Technologies From Science Fiction for Space Applications (ITSF) (Popularity: )

European Space Agency initiative studying the technologies and concepts found in science fiction, in order ...
Category: Science\Aeronautics and Aerospace\Space