When the mission Galileo detected an icy surface on the moon Europa it revealed a theoretical sea that had more mass that all of earth's liquid water combined.That alarmed scientists with the possibility of life in Europa.It had liquid water, high temperatures and minerals, all needed for life.
Of course something as a trip to mars or the moon will take around 10 to 20 years to get out of the ground.So to make time NASA is funding expeditions to the most similar place on earth that resembles Europa,the Gakkel trench in the arctic ocean.Where sunlight never reaches.There they found new species of sponges and lots of microbes.
But still, if there is life out there, we will never be really prepared for what's coming...
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