Popular Mechanics has an interesting piece on how our own planet Earth came to be so full of life, asking the question of whether or not life here on Earth exists in thanks to our neighbor Mars.
Just as thousands of microorganisms leave our planet with every rocket launched into space, early Earth life could have traveled from Mars on some meteorites blasted through space by a comet or asteroid making impact with Mars, staying alive deep inside waiting to bring our planet where it is today.
Popular Mechanics does not however delve in to the theory that intelligent Martians flew over, and sprinkled around the necessary elements for life, and are now watching us as their own giant ant farm.
Read their take on the spark of life here, keeping in mind you’re reading the opinion of a mechanic.
