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Is there life elsewhere in the universe?

Article Abstract:

There has been an ongoing search for life on other planets, through the use of radio signals and spacecraft voyages. However, it is likely that by 2050 we may have more conclusive knowledge about such life.

Author: Chyba, Christopher F., Tarter, Jill C.
Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1999
Discovery and exploration, Outer space, Space exploration, Life on other planets, Extraterrestrial life

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Is space finite?

Article Abstract:

The universe may appear to be infinitely large but that could be illusory. Astronomers are seeking patterns in the star field to find a possible answer to the ancient mystery.

Author: Luminet, Jean-Pierre, Weeks, Jeffrey R., Starkman, Glenn D.
Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1999
Topology

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Subjects list: Research, Cosmology
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