Destination Mars when Earth moves out of 'Habitable Zone'?


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Alternative Energy - Mars Landscape


Mars landscape, as seen from NASA probe.


A study published in the magazine Astrobiology concludes that Earth will eventually become too hot for human habitation, all water will evaporate and only microbes would be able to survive the heat.

Astrobiologists predict our planet will move out of the solar system's "habitable zone" and become too hot for even primitive bacteria. To survive, humans might have to migrate to Mars.

The Habitable Zone is clculated to be the distance from a planet's star at which temperatures will sustain water on the surface. Astrobiologists calculate Earth will cease to be habitable somewhere between 1.75 billion and 3.25 billion years from now.

After this point ... the seas would simply evaporate. We would see a terminal extinction event for all life on Earth.  Conditions for humans would be intolerable much sooner. This is being accelerated by climate change. Humans would be in trouble with even a small increase in temperature.

The length of time a planet can be inhabited indicates the potential for the evolution of complex life.  We had insects 400 million years ago, dinosaurs 300 million years ago and flowering plants 130 million years ago,

Modern humans have only been around for the last 200,000 years – so it takes a really long time for intelligent life to develop.


In order to survive, humans might have to migrate to Mars.  Fortunately, we won't be around to see it if they do.


Alternative Energy - Rover on Mars Landscape

Mars Rover 2012


Cheers - Allan Barker

September 22nd 2013




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