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Beamed Propulsion and Planetary Security

The 'Freakish Radio Writings' of 1924

Ancient Stars (and a Thought on SETI)

Astronomical Accidents, and the Proxima Centauri 'Signal' That Wasn't

Seven Dyson Sphere Candidates

Deep Space Trajectories: Exiting the Heliosphere

Voyager as Technosignature

SETI and Signal Leakage: Where Do Our Transmissions Go?

The Great Venusian Bug Hunt

Engineering the Oberth Maneuver

Optimal Strategies for Exploring Nearby Stars

Robot at 100

A Visualization of Galactic Settlement

Proxima Centauri b: Artificial Illumination as a Technosignature

‘Oumuamua: A Hydrogen Iceberg?

Can We Catch the Next ‘Oumuamua?

Black Hole Propulsion as Technosignature

Is Most Life in the Universe Lithophilic?

Future AI: The Explorer and the Philosopher

Ultrahigh Acceleration Neutral Particle Beam-Driven Sails

Is the interstellar object Oumuamua a lightsail from an alien civilization?

The Dipole Drive: A New Concept for Space Propulsion

The Plasma Magnet Drive: A Simple, Cheap Drive for the Solar System and Beyond

Interstellar Communication via Gravitational Lens

Close Look at Recent EmDrive Paper

Latest em-drive paper – A rational discussion

Orbital Determination for Proxima Centauri

An Interesting SETI Candidate in Hercules

SETI: No Signal Detected from KIC 8462852

A Stagecoach to the Stars

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