English: “Ganymede True Color Orbit 1” A true color image of Ganymede acquired by the Galileo spacecraft (taken on June 26, 1996). (NASA/JPL image) (Photo credit: Wikipedia)
According to NASA, wherever, in the solar system or indeed deep space, there is water to be found, then the probability is that there could also be life Scientists now know that life needs a solvent such as water, in order that complex macromolecules necessary for living systems to evolve can form.
This is perhaps the reason that some believe in the existence of life on Mars. the red planet displays much geological evidence of having once planet on which, billions of years ago, water once flowed, according to data retrieved by the Mars Science Laboratory Curiosity.
The fact is that several solar system bodies, including planetary moons, have been shown to possess subsurface oceans. All of these are potential sites for life to exist, on any or all of Titan, Ganymede, Callisto, Triton, Enceladus or Particularly Europa, every one of these supposedly inhospitable moons potentially having more water in them than found in all of the oceans on earth.
An emerging realization, over the past several decades, that a tremendous diversity of life exists on Earth in the most seemingly extreme environments, in the form of aptly named exteremeophiles. These amazing creatures almost certainly pre-date other forms of life on earth, and will likely be the last to vanish when the world ends in a billion years or so.
For scientists, the most exciting thing to be had from the finding of life on any of these moons or planets would be confirmation that life is an inevitable consequence of planetary formation, and should such life-forms, within their biological make-up, feature RNA and DNA, then the chances are good that there really is a kind of universal, molecular template for life, whatever the circumstances in which it finds itself.
NASA believes that Saturnian moon Enceladus has the most potential for microbic life-forms, as it is tidally heated, and the inner movements of the moon caused by the immense gravity of Saturn has helped keep the warm interior ocean in motion for possibly billions of years.
That said, Jupiter moon Europa, much closer to the sun, has as uch as 300% more water than earth, within an ocean hat could well be sixty miles deep or more, again a very promising place to look for extraterrestrial life. It seems that the European Space Agency is planning to launch a mission – the Jupiter Icy Moons probe, or JUICE, in 2030 -that is set to visit Europa, Ganymede and Callisto. Astronomers are confident that, with such a rich variety of varied and mysterious ocean bearing worlds within the solar system, it is not a question of if there is life to be found out there, but when humanity is going to discover it. #ETlife #Solar System #Probability
I have been writing for pleasure for half a century, but only started writing for money around 1994. Since then I have had a few thousand articles, stories and poems published on line and in print all round the world.
I am now 63 years old, male, from Burnley in the UK, and apart from writing, I love to read - mainly crime thrillers, conspiracy theory books and science fiction, though I also love films, gardening and chatting with my wife who is also my best friend.
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