AL
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Avi Loeb
astrophysicistuniversity teacherufologist
Abraham "Avi" Loeb is an Israeli-American theoretical physicist who works on astrophysics and cosmology. Loeb is the Frank B. Baird Jr. Professor of Science at Harvard University. He chaired the Department of Astronomy from 2011 to 2020, and founded the Black Hole Initiative in 2016.
Across 1 conversation, Avi Loeb ranges across Oumuamua, scientific inquiry, light sail technology. Avi Loeb argues that industrial pollution is a stronger signal for extraterrestrial life than oxygen, challenging current astronomical priorities. Oumuamua's unusual trajectory suggests it might be an artificial object, possibly a probe or space debris from an alien civilization.
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previewLoeb suggests that civilizations could exist for billions of years, developing technologies far beyond our understanding, which could appear as magic to us.
#154Avi Loeb: Aliens, Black Holes, and the Mystery of the Oumuamua
Oumuamua's light curve changed by a factor of 10 over eight hours, suggesting it has an unusual geometry, potentially a flat object.
#154Avi Loeb: Aliens, Black Holes, and the Mystery of the Oumuamua
The Copernican principle implies that civilizations have a limited lifespan, which affects the probability of detecting extraterrestrial signals.
#154Avi Loeb: Aliens, Black Holes, and the Mystery of the Oumuamua
Light sail technology involves a laser beam of 100 gigawatts to propel a sail, allowing travel at a fraction of the speed of light.
#154Avi Loeb: Aliens, Black Holes, and the Mystery of the Oumuamua
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