Big Think

Searching for aliens and Earth 2.0 | David Kipping: Full Interview

May 16, 2025
David Kipping, a Professor of Astronomy at Columbia University and director of the Cool Worlds Lab, dives into the fascinating world of exoplanets and the search for extraterrestrial life. He discusses the immense possibilities of finding Earth-like planets and the challenges involved in detecting exomoons. Kipping also elaborates on humanity's motivations for exploring and potentially colonizing other worlds. With intriguing insights on the Rare Earth Hypothesis and the Fermi Paradox, this conversation sparks wonder about our place in the universe and the existence of other civilizations.
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INSIGHT

Astronomy's Two Driving Questions

  • Astronomers are motivated by two key questions: are we alone in the universe, and how does the universe work?
  • These define two main camps: those searching for extraterrestrial life and those studying cosmic origins.
INSIGHT

What Are Exoplanets?

  • Exoplanets are planets outside our solar system orbiting other stars.
  • The first confirmed detection was in 1992 around a pulsar; 51 Pegasi b was the first confirmed planet around a sun-like star in 1995.
INSIGHT

Vast Potential of Exoplanets

  • Our galaxy alone contains around 100 billion stars, each potentially hosting multiple planets.
  • This vast number makes the study of exoplanets a monumental and exciting frontier in astronomy.
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