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'Sun-Like' Stars

A Multiwavelength Look at Proxima Centauri's Flares

Protoplanetary Disks Are Smaller Than Expected

The Ethics of Spreading Life in the Cosmos

SETI's hard steps and how to resolve them

Can life emerge around a white dwarf?

Vega's Puzzling Disk

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

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