Extraterrestrial: The First Sign of Intelligent Life Beyond Earth

· Hachette UK
14 reviews
Ebook
240
Pages
Eligible

About this ebook

'VISIONARY' Stephen Greenblatt

'So interesting... I recommend [Extraterrestrial] to people who have any interest in this extraordinary subject of life existing in other places than on Earth.' William Shatner (from Amazon.com)


Harvard's top astronomer takes us inside the mind-blowing story of the first interstellar visitor to our solar system

In late 2017, scientists at a Hawaiian observatory glimpsed a strange object soaring through our inner solar system. Astrophysicist Avi Loeb conclusively showed it was not an asteroid; it was moving too fast along a strange orbit, and leaving no trail of gas or debris in its wake. There was only one conceivable explanation: the object was a piece of advanced technology created by a distant alien civilization.

In Extraterrestrial, Loeb takes readers inside the thrilling story of the first interstellar visitor to be spotted in our solar system. He outlines his theory and its profound implications: for science, for religion, and for the future of our planet. A mind-bending journey through the furthest reaches of science, space-time, and the human imagination, Extraterrestrial challenges readers to aim for the stars-and to think critically about what's out there, no matter how strange it seems.
'VISIONARY' Stephen Greenblatt 'So interesting... I recommend [Extraterrestrial] to people who have any interest in this extraordinary subject of life existing in other places than on Earth.' William Shatner (from Amazon.com) Harvard's top astronomer takes us inside the mind-blowing story of the...

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Ratings and reviews

14 reviews
Koteswararao Annabattula
July 10, 2026
Extraterrestrial by Avi Loeb is a fascinating exploration of one of astronomy's greatest modern mysteries. Focusing on the interstellar object ʻOumuamua, Loeb presents the controversial idea that it could be evidence of advanced alien technology while emphasizing the importance of open-minded, evidence-based inquiry. Whether readers agree with his hypothesis or not, the book inspires curiosity, critical thinking, and a deeper appreciation of humanity's search for life beyond Earth.
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About the author

Abraham (Avi) Loeb is the Frank B. Baird, Jr., Professor of Science at Harvard University, longest-serving chair of Harvard's Department of Astronomy, founding director of Harvard's Black Hole Initiative, and current director of the Institute for Theory and Computation (ITC) within the Center for Astrophysics | Harvard & Smithsonian. He also heads the Galileo Project, chairs the Advisory Committee for the Breakthrough Starshot Initiative, and is former chair of the Board on Physics and Astronomy of the National Academies. Author of eight books and over a thousand scientific papers, Loeb is an elected fellow of the American Academy of Arts & Sciences, the American Physical Society, and the International Academy of Astronautics. In 2012, Time selected Loeb as one of the twenty-five most influential people in space. He lives near Boston, Massachusetts.

Abraham (Avi) Loeb is the Frank B. Baird, Jr., Professor of Science at Harvard University, longest-serving chair of Harvard's Department of Astronomy, founding director of Harvard's Black Hole Initiative, and current director of the Institute for Theory and Computation (ITC) within the Center for...

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