On December 7, 1972, the crew of Apollo 17 — the final manned mission to the moon — transmitted a photograph of the earth fully illuminated by the sun. Officially designated AS17-148-22727, the image captured a planet without borders or nations. From a distance of about 18,000 miles in space, the sphere — with its swirling clouds, blue oceans and brown-green continents — appeared as small and fragile as a child’s glass marble.
The photograph instantly gained worldwide fame as The Blue Marble. Embraced by the burgeoning environmental movement, it became an international symbol of our common home — one world that sustains us all and that, in turn, needs our care.
In 2009, the Blue Marble took on new meaning. Wallace “J” Nichols, a marine biologist and author of Blue Mind — an international bestseller exploring the neurological and psychological benefits of being near, in, on or under water — began placing actual blue marbles, made of recycled glass, in people’s hands.
The’ Blue Marble Project he created transformed an iconic image from space into a tangible, terrestrial expression of gratitude. Millions of marbles have since traveled around the globe. Nichols gave them to the Pope, the Dalai Lama, heads of state, Jean-Michel Cousteau, Jane Goodall, as well as teachers, scientists and school children. Climbers toted them to mountaintops. James Cameron, filmmaker and explorer, carried a blue marble with him on his solo descent to the Challenger Deep, the ocean’s most profound abyss.
These tokens of thanks — offered to anyone doing good work for the planet, serving the ocean or helping their community in a “blue” way — convey a universal message: I see what you are doing for our home, and I thank you.
Even after Nichols’ death in 2024, blue marbles have continued their hand-to-hand journey. Several weeks ago, a park ranger presented one to me in gratitude for my “wide-cast ripples of knowledge and oceanic love.”
Holding the marble at arm’s length, I imagined the luminous blue dot floating in space. “The most beautiful marble you can imagine,” as astronaut James Irwin described it, seemed so delicate that it might shatter if you touched it with a finger.
When I brought the little orb close to my face, I felt as though I was gazing into the sea — tinged with sunlight and teeming, in my mind’s eye, with microscopic larvae and plankton. Here was the mighty ocean, distilled into a sphere small enough to fit in the palm of my hand.
The marble is not mine to keep. Every recipient is instructed to pass it along in gratitude to another deserving person. The gifted becomes the giver, carrying forward a deeper connection to our world and to another blue-minded soul.
In this season of gratitude, when we hold our loved ones close, blue marbles remind us of our wider home — the blue world that underpins our lives, joys, sorrows, dreams and aspirations. As we struggle to keep our balance in a whirl of social, political and environmental upheaval, a blue marble, shining with the grace of gratitude, can serve as a powerful anchor.
And so I offer each of you a special wish: may you accept a virtual blue marble as a token of appreciation for following my journey across a blue frontier — and may you, too, pass on ripples of oceanic love.
