The burgeoning field of astrobiology and what it tells us about the meaning of life.
Every week that somber gatekeeper of human knowledge and wisdom—the internet—is abuzz with UFO sightings and strange alien encounters, all in an effort to bring the truth that is out there to the rest of us. Although these world-changing images are often more fizzle than flash, they serve as a testament to the fascination people have for the possibility of life that is out of this world.
Popular speculations like these, coupled with pronouncements every few years that scientists have found new evidence of alien life, lead us to believe that we are on the cusp of great discovery.
One of the recent advances making the news and fueling our interest in alien life is the recent discovery of exoplanets in the “Goldilocks,” or habitable, zone. As of this month, out of the 4,118 exoplanets now confirmed, 55 exist in the habitable zone. As new astronomical technology comes online in the next decade, this number is expected to rapidly increase.
As our focus on these extrasolar worlds become sharper, finding life—of any sort—on any one of them becomes more credible with each passing year. As a result, there has been an explosion of interest in a new field of research, astrobiology, the study of alien life and its origins and occurrences in our universe.
But there’s one thing you need to know about astrobiology: it is the only science that has no subject for study. Internet aside, we have no aliens.
This fact hasn’t dissuaded astrobiologists in the least. Instead, what makes astrobiology one of the most interesting fields of study is that it is in some ways a new kind of science—one that links physics with ethics, astronomy with philosophy, and biology with theology in a unique new way. …