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Planet

Astronaut shares the profound 'big lie' he realized after seeing the Earth from space

This change in perspective could change humanity.

via Rubén Moreno Montolíu/Flickr

Our home, from space.

Sixty-four years ago, Soviet cosmonaut Yuri Gagarin became the first human to make it into space and the first to experience what scientists now call the "overview effect." This change occurs when people see the world from far above and notice that it’s a place where “borders are invisible, where racial, religious and economic strife are nowhere to be seen.”

The overview effect makes man’s squabbles with one another seem incredibly petty and presents the planet as it truly is, one interconnected organism.

In a compelling interview with Big Think, former NASA astronaut, author, and humanitarian Ron Garan explains how, if more of us developed this planetary perspective, we could fix much of what ails humanity and the planet.

Garan has spent 178 days in space and traveled more than 71 million miles in 2,842 orbits. From high above, he realized that the planet is a lot more fragile than he thought.

  - YouTube  youtu.be  

 

“When I looked out the window of the International Space Station, I saw the paparazzi-like flashes of lightning storms, I saw dancing curtains of auroras that seemed so close it was as if we could reach out and touch them. And I saw the unbelievable thinness of our planet's atmosphere. In that moment, I was hit with the sobering realization that that paper-thin layer keeps every living thing on our planet alive,” Garan said in the video.

“I saw an iridescent biosphere teeming with life,” he continues. “I didn't see the economy. But since our human-made systems treat everything, including the very life-support systems of our planet, as the wholly owned subsidiary of the global economy, it's obvious from the vantage point of space that we're living a lie.”

It was at that moment he realized that humanity needs to reevaluate 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,” he added.

earth, space, planet earth, home, overview effectCurvature of the earth.

 

 Giphy 

 

Garan says that we are paying a very “high price” as a civilization for our inability to develop a more planetary perspective and that it’s a big reason why we’re failing to solve many of our problems. Even though our economic activity may improve quality of life on one end, it’s also disastrous for the planet that sustains our lives.

It’s like cutting off our nose to spite our face.

Actor William Shatner, who spent years playing the iconic Captain James T. Kirk on the original Star Trek series, had a similar experience to Garan's when he went to space for real in October 2021:

"It was among the strongest feelings of grief I have ever encountered," Shatner wrote. "The contrast between the vicious coldness of space and the warm nurturing of Earth below filled me with overwhelming sadness. Every day, we are confronted with the knowledge of further destruction of Earth at our hands: the extinction of animal species, of flora and fauna … things that took five billion years to evolve, and suddenly we will never see them again because of the interference of mankind."

“We're not going to have peace on Earth until we recognize the basic fact of the interrelated structure of all reality,” Garan said.

However dire the situation looks from the surface of Earth, the astronaut has hope that we can collectively evolve in consciousness and wake up and embrace a larger reality. “And when we can evolve beyond a two-dimensional 'us versus them' mindset, and embrace the true multi-dimensional reality of the universe that we live in, that's when we're going to no longer be floating in darkness … and it's a future that we would all want to be a part of. That's our true calling.”

 earth, planet earth, home, humanity, overview effect The earth is in our hands. Canva Photos.

This article originally appeared three years ago. It has been updated.

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45 years ago, Carl Sagan beautifully explained the fourth dimension with just an apple

Sagan was the Mister Rogers of complex scientific concepts.

via Carl Sagan Planetary Society/Wikimedia Commons and John Finkelstein/Pexels

Carl Sagan used a sliced apple to perfectly explain the fourth dimension.

The concept of the fourth dimension seems beyond human comprehension. As three-dimensional beings, we are unable to see beyond a physical object's height, width and depth. What else could there be? Even if you understand the concept, it is almost impossible to picture it in your mind, which is bound by the limits and realities of the physical world around us.

Enter Carl Sagan, revered as one of the greatest science communicators of his time. Perhaps best known for his research into extraterrestrial life, he was one of the first people to demonstrate that life could have existed on Mars. Sagan possessed a unique gift for demystifying complex scientific concepts, making them accessible and thrilling for the general public. If you never had the pleasure of watching him on television, you could imagine him as something of a Scientific Mister Rogers. Friendly, a wonderful storyteller, and always able to distill difficult lessons into their simplest form.

In 1980, on Episode 10 of the groundbreaking PBS show “Cosmos,” Sagan embarked on a mission to explain the seemingly impossible fourth dimension.


carl sagan, cosmos ,4th dimension, 3-D, 4-D, 2-D, physics, theoretical physics, math, science, space, spacetime, einsteinA great communicator and handsome, to boot.Giphy

Many of us have commonly heard of time being considered the fourth dimension. That's not so hard to understand — in order to locate an object in the universe, you'd need to know three dimensions of its spatial location and also the time during which it exists.

But there is also a more theoretical and harder to understand place, where all four dimensions are spatial. It is nearly impossible for any of us to comprehend... without the help of a gifted teacher.

What’s excellent about Sagan’s explanation is that he uses simple and relatable objects: an apple and a Tesseract, or a hypercube.

carl sagan, cosmos ,4th dimension, 3-D, 4-D, 2-D, physics, theoretical physics, math, science, space, spacetime, einsteinSagan explains that if an apple existed in a 2-dimensional space, anyone living in this "flatland" would only see a cross-section of it at a time.Giphy

"In discussing the large scale structure of the cosmos, astronomers sometimes say that space is curved. Or that the universe is finite but unbound," Sagan begins. "Whatever are they talking about?"

Yeah, this guy gets it.

Sagan then goes on to explain how a two-dimensional being living in a flat world would perceive a three-dimensional object like an apple.

Watch his full explanation here. It's hypnotic and entertaining and incredibly enlightening.

- YouTubewww.youtube.com


“Imagine we live in this ‘Fllatland’/2-D plane with no concept of ‘up’ or ‘down.’ Then along comes a 3-D object like an apple. We do not even notice it until it crosses our plane of existence — and even then, we have no idea what the apple is,” Sagan explains. “We see only a fragment as it passes through our plane. There is no way we can comprehend the 3-D quality/dimension of the apple, because it is more than we can understand. We only have the evidence of what has passed through our plane.”

To further demonstrate, Sagan stamps the apple into an inkpad and then onto the surface in front of him, which represents Flatland and all of its inhabitants. Inside Flatland, the apple exists only as its points of contact on the paper; or four small dots. He adds that as the apple passes through the 2-dimensional Flatland, its cross-section changes. So someone living in that plane of existence would experience the apple as an ever-shifting and rearranging set of shapes or objects. Wild!

Sagan then related this two-dimensional experience of the third dimension to how we might try to understand the fourth. To do so, he used the Tesseract, a four-dimensional cube, to demonstrate how difficult it is for us to perceive or visualize dimensions beyond our own three.

carl sagan, cosmos ,4th dimension, 3-D, 4-D, 2-D, physics, theoretical physics, math, science, space, spacetime, einsteinA tesseract can not exist in 3-dimensional space, but it can be approximated the same way a cube can be drawn on paper.Giphy

Sagan explains that the tesseract is a cube expanded into a 4th dimension, but "I cannot show you a tesseract because I, and you, are trapped in three dimensions." But what he can do is show us a 3-dimensional rendering of one. Just like a cube can be drawn and approximated (or cast a shadow) onto a piece of paper, a 4-dimensional tesseract can be imperfectly represented in 3-dimensional space. Still following?

At this point, Sagan is asking the viewer to expand their minds to understand the fourth dimension metaphorically. Though we cannot see it or even properly visualize it, that doesn't mean that the things we can see can't offer clues and lessons about the fourth dimension.

Studying 4-dimensional space can help in our understanding of the universe around us. Just because we see and experience only three dimensions doesn't mean that's all that exists. It's critical for physicists and mathematicians to be able to understand and map these theoretical spaces to better comprehend things we otherwise can not explain. Remember the ever-changing, rearranging set of shapes as the apple passes through Flatland?

Sagan’s demonstration of the fourth dimension isn’t just a wonderful explanation of a scientific idea that many of us find difficult to comprehend; it’s also a great example of how to teach complex ideas by combining clear explanations, everyday concepts everyone can understand, and brilliant storytelling.

This article originally appeared last year. It has been updated.

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Science

Shooting stars: What happens when astronauts poop in space?

Astronauts use the atmosphere to their advantage.

via Canva/Photos

A shooting star above a winter landscape.

Astronauts must undergo extensive training before they can enter space. They have to learn spacecraft operations, survival skills, robotics, physical fitness, how to walk in space, and emergency protocols in case something goes wrong. They also need extensive training on how to use the toilet.

How do astronauts go to the bathroom in zero gravity?

Astronaut Chris Hadfield, a former commander of the International Space Station (ISS), says that astronauts must learn to recognize that the urge to go feels different in zero gravity. “How do you know when you have to poop on earth? It's actually because of the weight of the poop inside you. Tells you, hey, it's time to poop,” Hadfield says. “Well, if you're weightless, then your body's not gonna tell you it's time to poop. So you almost have to learn this new sort of fullness symptom that tells you it's time to poop.”


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How to poop in Space #astronauts #space #poop #iss #internationalspacestation #astronaut

Hadfield goes onto explain the rather ingenious of fans in space station toilets that mimic gravity for you. "Taking the place of gravity to pull the poop into the toilet is airflow," Hadfield explains. The fans work to suck the waste down once it leaves the body (this goes for urine as well, notes Hadfield). Though an impressive workaround, Hadfield certainly appreciates the effects of gravity after returning to Earth since it makes it a lot easier to go poop. “You're counting on gravity, cause gravity is gonna pull it away from you,” Hadfield said. “And without gravity, even when you're done pooping, the the poops just gonna stay sort of sticking to you. So we wear a rubber glove. And sometimes you have to, like, physically separate the poop from your body.”

Thank goodness for gravity.

johnson space center, space toilet, bathroom space shuttle, houston texas, space, engineering, Space Shuttle toilet on display at the Johnson Space Center in Houston.via Svobdat/Wikimedia Commons

Using air instead of water to suck waste into a space toilet makes things a lot less messy, too. You don’t want to flush your urine and feces in zero gravity. That would be a horror show. Being in space also does strange things to your poop. When astronaut Scott Kelly returned home after spending a year aboard the ISS, researchers found that his gut microbiome changed significantly from those typically found on the ground. It took a few months after Kelly’s return to Earth for his gut to return to normal.

iss, international space station, space, nasa photos, its, solar arraysThe International Space Station.via NASA/Wikimedia Commons

Where does the poop go when astronauts use the bathroom in space?

When Kelly was on the ISS, the urine was transformed into reusable water aboard the space station. The feces, for which he produced over 180 pounds during his 340-day stay in space, is collected into bags and put on a small craft that is launched into space. Much like a shooting star or meteorite, the waste eventually burns up as it reenters the atmosphere, so you don’t have to worry about astronaut poop landing on the roof of your house.

Astronauts must be cautious about when and where they use the restroom while in space, so a diaper can be a valuable asset during their mission. There’s nowhere to go on a spacewalk, so astronauts wear diapers to avoid aborting their mission if nature calls 250 miles above the Earth's surface. They also wear a diaper during takeoffs and landings because it’s too dangerous to get up and walk around the cabin.

You have to master an incredible number of skills to be able to make it into space as an astronaut. You need to know science and engineering, but also possess a good sense of self. You must learn new ways of interacting with your body, and one of the most important values you can cultivate while exploring the final frontier is humility.

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Walking Alongside Martu: A journey with one of the world’s oldest living cultures

Pura’s inaugural impact collection honors both sacred traditions and sustainable futures.

James Roh
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In a world driven by speed, efficiency, and immediate results, it’s easy to forget that lasting change is built on trust. Real impact doesn’t come from rushing toward an end goal or measuring success through lofty metrics. It comes from falling in love with the problem, building a community around it, and sharing a vision for lasting transformation.

Pura, the smart home fragrance company that marries premium fragrance with innovative technology, recently launched its inaugural impact collection with K Farmer Dutjahn Foundation (KFDF) and Dutjahn Sandalwood Oils (DSO). The Pura x Dutjahn partnership began with a clear purpose: to source a sacred ingredient directly from its origin while honoring the land and the people who’ve cared for it. Our goal wasn’t simply to find sandalwood — it was to find a community and an ingredient that embody exceptional land stewardship, ethical harvesting, and transformative, community-led impact. After careful research and over three years of development, we saw an opportunity to secure a premium, luxurious ingredient while supporting a regenerative supply chain that invests in Indigenous-led education, economic opportunity, and land stewardship.

James Roh

Over the past several years, we’ve walked alongside Martu, an Indigenous tribe from the vast Western Australian desert. Martu are one of the oldest living cultures in the world, with a history spanning 60,000 years. As nomadic hunter-gatherers, they have unparalleled ecological knowledge, passed down through generations, making them the traditional custodians of the land. Their approach to sandalwood harvesting isn’t driven by market demand but by a deep respect for seasonal rhythms, land health, and cultural law. Their work adapts to the environment—whether it’s “sorry time,” when mourning pauses activities, or the harsh desert conditions that make travel and communication difficult. Martu operate on Martu time, a deliberate rhythm shaped by millennia of experience, far removed from the rapid-swipe, hyper-productive pace of Western systems.

Martu’s ecological knowledge isn’t documented in baseline reports. It’s lived, carried in stories, and practiced with rigor and respect for the changing needs of the ecosystems. True partnership means unlearning the typical approach. It means standing beside—not in front—and recognizing that the wisdom and leadership we need already exist within these communities. Our role isn’t to define the work, but to support it, protect it, and learn from it.

James Roh

Tonight, as I spoke with Chairman Clinton Farmer and the KFDF team about our focus for this piece, I learned that Clinton’s truck had broken down (again), leaving him to “limp” back to town from the desert at low speeds for hours and hours. He had been awake since 3:00 a.m. This is a common and costly setback, one that disrupts the harvest, demands days of driving, and brings real financial and emotional strain. These barriers are relentless and persistent, part of the harsh reality Clinton and his community face daily. It's easy for outsiders, detached from the reality on the ground, to impose rules, regulations, and demands from afar. Rather than continuing to impose, we need to truly partner with communities — equipping them with the resources to operate sustainably, avoid burnout, and protect the very land they love and care for. All while they endeavor to share these incredible, sacred ingredients with the world and build an economic engine for their people.

There is much to learn, but we are here to listen, adapt, and stay the course. The future we need will not be built in quarterly cycles. It will be built in trust, over time, together.

To learn more about the partnership and fragrances, visit Pura x Dutjahn.

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