As we power past the 50th anniversary of the moon landing with another successful space launch with Falcon 9, it has become a truism, even a cliché, that the sky is no longer the limit, now that there are footprints on the moon.
Practitioners of science have also recently provided life-affirming signs of hope for our weary, benighted species:
In November 2018 we landed InSight on the surface of Mars – an extremely complex and delicate multi-year mission that, somehow and amazingly, went off flawlessly, by using the gravitational pull of that distant planet as a slingshot to precisely guide our planetary probe to its intended destination, where it will transmit data to earthbound scientists and hopefully provide some answers about our vast universe.
And last Spring, we finally saw – at last – an image that for decades has been the subject of much tantalizing speculation and theorizing: a ring of fire and particles swirling around a black hole, an object of such unimaginable mass and density that nothing – not even light – can escape its awesome and irresistible gravitational pull.
The image was the product of a global community of scientists and researchers working in a coordinated fashion that effectively transformed a networked complex of far-flung detectors and powerful computers into an earth-sized cosmic telescope capable of peering deep into the universe.
The concept of a world that is knowable by human reason and scientific inquiry is the culmination of thousands of years of human observation, experimentation and discovery.
As the celebrated physicist, mathematician and astronomer Sir Isaac Newton once said, “If I have seen further it is by standing on the shoulders of giants.”
The earliest humans looked at the stars in the nighttime sky and dreamed of distant lands beyond the horizon, of worlds beyond the physical earth. Gradually, as they discerned patterns of regularity they were able to chart the stars and reference them to navigate the seas, formulate their calendar, and prepare for the planting season.
And as they increasingly recognized, despite the apparent randomness and chaos of Creation, the physical universe exhibits patterns of elegant, exquisite and profound organization, which evoke existential stirrings and give rise to a sense of joy, wonder, reverence and awe.
And once we realize the beautiful, harmonious, rational basis for universal patterns of organization – and with it the understanding that our lives, too, can have meaning, order, and purpose – the question then becomes:
How should we organize our affairs and personal relations, and those of our community, our nation, and our world, so that we may live our lives in harmony and in accordance with a universal order in a way that ensures peace, justice, freedom and dignity to all living souls on our planet?
How can we walk this Earth as brothers and sisters – each made just a little bit different, to encourage and challenge us to recognize and celebrate our common humanity – and how can we share this world and this commonwealth as family?
That to me is where the excitement surrounding news of scientific achievements and discoveries springs from: the sense of joy and wonder we experience when we contemplate the awesomeness of nature and the beautiful sense of harmony, symmetry and order in an unfolding creation, the vast scope and scale of creation, the ecstatic feeling that we are somehow a part of a living, evolving, unfolding, inter-connected universe, and the sense that, somehow, we too are all on our own journey of discovery.
In explaining the ultimate truth, both science and religion ultimately fall short. But science holds its truths as provisional, and always subject to change upon additional information.
And that’s because science is not actually about “knowing” anything for certain, but about gathering, evaluating and verifying evidence.
When a scientific hypothesis is put forward, it is rigorously tested by many independent researchers, and if the original findings, on rigorous testing, can be consistently replicated, then the hypothesis becomes accepted as the best explanation to date and will stand until someone puts forward a new hypothesis which either disproves the current one or advances it from its present position.
What we have, then, is a weight of evidence provisionally agreed upon by the scientific community which represents our current state of knowledge – but which is also only a work in progress and subject to constant questioning of accepted truths. Scientific certainty betrays the spirit of independent inquiry and the belief that all knowledge is subject to rigorous scrutiny.
Which leaves us with questions and uncertainty. And here, here on this earth, we must live with the sometimes vexing matter of complexity, doubt, and ambiguity.
But which, after all, is the springboard to new discovery.
And so, as we have done since time immemorial, we fix our gaze to the heavens, to the stars …
And dream.