Ron Garan spoke about experiencing the ‘Overview Effect’ in spac
An astronaut who spent 178 days in space has revealed the ‘big lie’ he discovered while he was up there.
Former NASA Astronaut Ron Garan Describes the Life-Changing “Overview Effect”
Spending 178 days in space, orbiting Earth 2,842 times, and traveling more than 71 million miles, former NASA astronaut Ron Garan has had a perspective few can ever experience.
One moment, in particular, left an indelible mark on him—an awe-inspiring realization known as the “Overview Effect.” This phenomenon occurs when astronauts see Earth from space for the first time, fundamentally altering their perception of the planet and humanity’s place within it.
“It shifts the way astronauts view and think about our planet and life itself,” NASA explains.
In an interview with Big Think, Garan reflected on this profound moment:
“We keep trying to deal with issues like global warming, deforestation, and biodiversity loss as isolated problems when, in reality, they’re just symptoms of a deeper issue—we don’t see ourselves as planetary.”
From the International Space Station, Garan witnessed Earth in all its breathtaking beauty—the blinding flashes of lightning storms, the dancing curtains of auroras so vivid they felt within reach, and the unbelievably thin layer of atmosphere protecting our world.
It was in that moment, looking down at our fragile yet resilient home, that everything became undeniably clear.

A Sobering Realization from Space
As Ron Garan gazed down at Earth from the International Space Station, he was struck by a chilling truth:
“In that moment, I was hit by the sobering realization.”
Our entire planet—and every living thing on it—exists because of a paper-thin layer of atmosphere, a fragile shield that sustains life.
“I saw an iridescent biosphere teeming with life. I didn’t see an economy. But since our human-made systems treat everything—including the very life-support systems of our planet—as a mere subsidiary of the global economy, it’s obvious from the vantage point of space that we’re living a lie,” Garan reflected.
From space, the illusion fades. The divisions we create—borders, economies, industries—become insignificant compared to the delicate, interconnected system that keeps our world alive.

A Lightbulb Moment in Space
Ron Garan describes the moment he looked down at Earth as a “light bulb that pops up”—a sudden realization of just how interconnected and interdependent we all are.
Since returning from his mission, Garan has dedicated his efforts to fostering a cleaner, safer, and more peaceful planet. He urges humanity to rethink its priorities:
“We need to move from thinking ‘economy, society, planet’ to ‘planet, society, economy.’ That’s when we’re going to continue our evolutionary process.”
His message is clear: peace on Earth can only be achieved when we fully recognize the interrelated structure of all reality. As Garan puts it, we’re not going to have peace until we see that everything—our planet, our society, our economy—is part of one fragile, interconnected whole.