"Look Again at That Dot."
"Look again at that dot. That's here. That's home. That's us." - Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space
Take a moment to observe one of the many now-famous images captured by NASA's Cassini spacecraft, in which Earth was wondrously captured as the only source of light between the acting frame of Saturn's rings.
While this image may prompt thoughts of our sheer insignificance in the grand scheme of things, challenge yourself to examine this photograph from a different angle.
Consider just some of the many, many factors needed to sustain life on a planet, amidst the desolate and violent conditions of space: being the right distance from the sun to allow for water to melt, being in the “habitable zone” of the galaxy to avoid deadly radiation, having a near-perfect circular orbit to maintain consistent warmth and light, having a moon that creates tides, and so on. And, by the way, it doesn’t hurt to have “gas giant” neighbors, like Saturn, to attract asteroids and comets, often preventing them from reaching us.
As it seems, we just happened to be in the right place at the right time. Whether by luck, by fate, or perhaps by something we do not yet understand, behold life.
From the first microorganisms to the ~8 million species that now reside here, life on Earth has evolved over the years. Us humans, the luckiest of the bunch, have even grown to possess a heightened state of consciousness, for better or worse. That is to say we have the ability to do extraordinary things like imagine, perceive, and love.
Let this image of Earth pose a thought, not on insignificance, but on what can become of being in the right place at the right time. Whether by luck, by fate, or perhaps by something we do not yet understand, behold.