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Showing posts from September, 2020

Better Than Earth

Credit: NASA, ESA, and G. Bacon (STScI) Clearly it is possible to imagine exoplanets which are less habitable than Earth but is it possible to imagine one that is better than Earth? It is interesting to push the habitability envelope to investigate how alternative conditions would change how life develops but what changes would be more favourable for life?

Dwarf Stars Come In Different Sizes

Credit: xkcd Stars come in a variety of forms and deciding on the nature of the star (or stars) around which a habitable planet orbits is an important first step when designing an environment for world building using a bottom up approach. While a star similar to the Sun is obviously suitable for life it is interesting to consider how life might be different beneath an alien star with different properties.

Water, Water, Everywhere

Credit:  Jong Marshes By definition, if we are interested in investigating what life could evolve on a planet then it must be habitable. However, what defines habitability? Clearly it depends on the definition of life itself. So, what is life?

How To Build A World In Seven Days

Source: dirkb86 Actually, it will likely take more than seven days but I thought I should copy the catchy title format that other blogs used. I can't promise to "blow your mind" with the information but I will try.

Project Khthonia: Overview

Credit: NASA's Goddard Space Flight Center/S. Wiessinger Before I go any further I will briefly describe my world building / speculative evolution project. As mentioned previously this is a work in progress but some areas are more fully defined than others. I reserve the right to change my mind as I post more information though!

It All Started With The Big Bang

Credit:  NASA ,  ESA , S. Beckwith ( STScI ), and The Hubble Heritage Team ( STScI / AURA ) In response to some comments I made on speculative lighter-than-air organisms on the Planet Furaha blog I was invited to write a two part guest post. Ballonts VIII: Blue Sky Thinking  Part 1  and  Part 2  have now been published. This made me think that my thoughts on speculative evolution and other matters might be of interest to people. So, here is my own blog where I can publish those thoughts on similar topics to see if anyone is actually interested. I have recently rekindled my childhood interest in both biology and space through the field of astrobiology. Therefore discussing world building in relation to astrobiology seems to be a good starting place. Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe. As my education and career have been in physics, I thought I would take a bottom up approach to investigate the physical nature of exoplan