All lifeforms across the entirety of the planet Earth have one thing in common, in that there is only one genetic code shared amongst all of the biological kingdoms, a singular chemical language handed down through the planet’s history, from the earliest single-celled creatures to the complex organisms that
“Some of the best evidence for life in space lives right here on Earth: It’s weird, adaptable, and far hardier than we ever thought.” —Alissa Zhu
Panspermia is the ancient idea that the seeds of life exist everywhere in the Universe. Spread like spores by stellar rocks and dust as well as by human-made space debris, they begin the process of evolution wherever they land – just as soon as they encounter the right conditions in which to thrive. If it takes 40,000,000 years or more for that to happen – well, who’s counting, anyway? The microorganisms remain ever ripe and ready for action. But what are the ideal conditions for life?