Centauri Dreams

What the Comments Taught Me: A Reply on Self-Replicating Probes

A Metallurgist’s Doubts About Self-Replicating Probes

New Horizons: Pushing Toward the ‘Termination Shock’

The Intergalactic Fermi Problem

HD 39474: A Brown Dwarf Shapes a Planetary System

The Physics of Interstellar Travel

Observations on ‘The Search for Technosignatures: A Review of Possibilities’

Evolving Strategies in the Search for Extraterrestrial Civilizations

Turbulence Between the Stars

Przybylski’s Star: Still Bizarre After All These Years

A Deeper Dive into the Proxima Centauri Swarm

Moving a Civilization: The Caplan Thruster

Stability of Interstellar ‘Big Dumb Objects’

No Signs of Atmosphere on TRAPPIST-1 b or c

Interstellar Probes: Moving Beyond Bracewell

On Artemis and Starshot

Thinking about Bracewell Probes

Interstellar Choices: Where to Look for Habitability?

Biology on a Rogue Planet’s Moon?

Starshot Is a Success (Part II)

Starshot Is a Success: Part I

The Language of Contact

Propulsion Options for the Solar Gravitational Lens Mission

A Relativistic Explanation for the Dearth of Circumbinary Planets

A New Tool for Exoplanet Detection and Characterization

Holography: Shaping a Diffractive Sail

Shelter from the Storm

Cellular Cosmic Isolation: When the Universe Seeds Life but Civilizations Stay Silent

Pandora: Exoplanets at Multiple Wavelengths

Explaining Cloud-9: A Celestial Object Like No Other

Astrobiology: What Our Planet Can Teach Us

Building a Library of Science Fiction Film Criticism