Suppose that advanced civilizations, separated by a cosmological distance and time, wish to maximize their access to cosmic resources by rapidly expanding into the universe. What sort of boundary forms […]
astro-ph.CO
Posted inAstrobiology (general), Press Release
The Habitability of The Universe Through 13 Billion Years of Cosmic Time
The field of astrobiology has made tremendous progress in modelling galactic-scale habitable zones which offer a stable environment for life to form and evolve in complexity. Recently, this idea has […]
Posted inExoplanets, -moons, -comets, Habitable Zones
The Fine Structure Constant and Habitable Planets
We use the existence of habitable planets to impose anthropic requirements on the fine structure constant, α. To this effect, we present two considerations that restrict its value to be […]
Posted inPress Release, SETI & Technosignatures
Conformal Cyclic Cosmology and the Fermi Paradox
Within the scheme of conformal cyclic cosmology (CCC), information can be transmitted from aeon to aeon. Accordingly, the “Fermi paradox” and the SETI programme – of communication by remote civilizations […]
Posted inAstrobiology (general), Habitable Zones
The Habitable Epoch of the Early Universe
In the redshift range 100