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Are Extraterrestrials a Threat to Humankind

ARE EXTRATERRESTRIALS A THREAT TO HUMANKIND

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Humanities & Social Sciences

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What would be the impact for Earth if or when humankind encounters extraterrestrial life? Whether that alien life is microscopic or sentient, discovered through human exploration or by an alien communication or through the sudden appearance of spaceships above out world, would Earth and humanity be in danger? This title explores opinions about the possible effects of alien contact held by those scientists and thinkers who are actively involved in the search for extraterrestrial life or are seriously considering how Earth should react if contact is ever made.

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Front Cover.
Copyright Page.
Contents.
Introduction: Unknown Dangers.
1: Is Any Kind of Life Out There?.
2: The Threat from Microscopic Life.
3: The Threat from Intelligent Extraterrestrials.
4: Making Contact.
Source Notes.
For Further Exploration.
Index.
Picture Credits.
About the Author.

Are Extraterrestrials a Threat to Humankind.css-1p8rvzy{position:absolute;padding-left:8px;}

Are Extraterrestrials a Threat to Humankind