Where They Could Hide

LePage, Andrew J.

doi:10.1038/scientificamerican0700-43

Cited by 4 publications

(3 citation statements)

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“…106 Or, if interstellar travel proves impossible, would they at least not try to communicate? It is an example of a sociological condition that has to apply to every technological species for it to work.…”

Section: There's No Place Like Homementioning

confidence: 99%

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If the Universe is Teeming with Aliens... Where is Everybody?

2002

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Section: There's No Place Like Homementioning

confidence: 99%

“…[ 122 Pg 102] See [106]. The author overstates his case, but the article is nevertheless accessible and thought-provoking.…”

Section: Solution 5: the Zoo Scenariomentioning

confidence: 99%

If the Universe is Teeming with Aliens... Where is Everybody?

2002

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“…To date, searches around this frequency appear to rule out the existence of a civilization within 50 light-years (LY) deliberately transmitting at or above a power level that could be transmitted from our own Arecibo radio telescope in Puerto Rico (used as a narrowly beamed radar system). 19 Furthermore, 10% of the star systems out to 4,000 LY have been searched for transmissions at this power level. Assuming a somewhat higher transmission power level, but still a very plausible power for a civilization even slightly more advanced than ours, searches to date have covered all stars out to 500 LY and 10% of the stars out to 40,000 LYabout 40% of the distance across our galaxy.…”

Section: The Likelihood Of Technologymentioning

confidence: 99%

Enlivening introductory physics with SETI

Hobson

2001

The Physics Teacher

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436 Art HobsonEnlivening Introductory Physics With SETI presented only after energy, electrodynamics, and special relativity. For further teaching suggestions and more complete background information, see the author's liberal-arts physics textbook, 4 two collections of readings, 5,6 and practically any recent introductory general astronomy textbook. 7 Art HobsonArt Hobson is the author of Physics: Concepts and Connections (Prentice Hall, 2nd edition 1999, 3rd edition in preparation), a college-level conceptual physics textbook for nonscientists, emphasizing modern topics such as general relativity and quantum theory, societal topics such as global warming and energy resources, and philosophical topics such as scientific methodology and pseudoscience.

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The search for extraterrestrial intelligence

Wilson

2001

Nature

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As far as we know, humanity is alone in the Universe: there is no definite evidence for the existence of extraterrestrial life, let alone extraterrestrial civilizations (ETCs) capable of communicating or travelling over interstellar distances. Yet popular speculation about the existence of ETCs abounds, including reports of alien visitations either now or in the past. But there is a middle way. It is now possible to put limits on the existence of ETCs of varying capabilities, within arbitrary distances from the Solar System, and conceive of real-world strategies whereby we might communicate with ETCs, or they with us.

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Where They Could Hide

Cited by 4 publications

References 0 publications

If the Universe is Teeming with Aliens... Where is Everybody?

If the Universe is Teeming with Aliens... Where is Everybody?

Enlivening introductory physics with SETI

The search for extraterrestrial intelligence

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