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A Possible Proxima Centauri c

While we continue to labor over the question of planets around Alpha Centauri A and B, Proxima Centauri -- that tiny red dwarf with an unusually interesting planet in the habitable zone -- remains a robust source of new work. It’s surely going to be an early target...

Axial Tilt, Habitability, and Centauri B

Our fascination with Alpha Centauri doubtless propels at least some of the recent interest in binary star systems, as we ponder the chances for habitable worlds around the nearest stars. But given that the population of binary or multiple star systems in our galaxy is...

Proxima Centauri c?

A possible second planet around Proxima Centauri raises all kind of questions. I wasn't able to make it to Breakthrough Discuss this year, but I've gone over the presentation made by Mario Damasso of Turin Observatory and Fabio Del Sordo of the University of Crete,...

Omega Centauri: Improbable Venue for Life?

Although it appears in the same constellation as seen from Earth (Centaurus), Omega Centauri has nothing to do with the Alpha Centauri stars that so interest interstellar flight theorists. The brightest globular cluster visible in our skies, Omega Centauri is anything...