Big Think science
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Ask Ethan: Why are astronauts weightless while still in Earth’s gravity?
If you stand here on the surface of the Earth, whether at the north pole where the acceleration is greatest or at the summit of Huascarán where it’s the smallest, you’ll be pulled toward the center of the Earth with an acceleration of 9.8 m/s²: the acceleration due to gravity, or “1g” on the surface of the Earth. Sure, there are tiny variations that will ensue, as your distance from Earth’s center, the speed of the planet’s rotation beneath your feet, and the density and composition of Earth’s c
0
6
These 4 behaviors predict divorce with startling accuracy
Every marriage’s disintegration is marked by the same four warning signs that researchers John and Julie Gottman can spot before a couple even finishes their first sentence.
The founders of the Gottman Institute break down decades of lab research on why relationships collapse, and what to look for in a partner so they can make it 50 years by your side.
This video These 4 behaviors predict divorce with startling accuracy is featured on Big Think.
0
5
3 ways to make your own luck
Three people are sitting on a bench: a wise man between two fools.
One fool is called “Pointless.” They argue that the universe is cold and uncaring to human needs. We can try as hard as we want and plan as long as we can, but at the end of the day, the world will have its way. A bullet, a disease, a speeding truck, a single sentence from a powerful person — they’ll each determine our lives, so trying to plan is pointless.
The other fool is called “Control.” They say we are in charge of everythi
0
4
Gravity can’t be an instantaneous force
When you look at the Sun, the light you’re seeing isn’t the light that’s being emitted right now. Instead, you’re seeing light that’s a little more than eight minutes old, since the Sun is some 150 million kilometers (93 million miles) away, and light — although it’s fast — can only travel through the Universe at a specific speed: the speed of light. But what about gravitation? Everything on Earth experiences the Sun’s gravitational pull, but is the gravity that the Earth experiences as it orbit
0
4
Psychologist: The blueprint for developing a healthy relationship with your emotions
Stress has a branding problem. Clinical psychologist Dr. Lisa Damour argues that most of us have the wrong relationship with discomfort entirely, treating stress like a malfunction instead of what it actually is: a signal that we’re growing.
This video Psychologist: The blueprint for developing a healthy relationship with your emotions is featured on Big Think.
0
4
How not to confuse good outcomes for good decision-making
In my decades of playing soccer, I’ve taken part in hundreds of games. I’ve played in games where we dominated and lost. I’ve played in games where we were awful yet somehow scraped through to win. I’ve played in games where the other team cheated the whole way through with time-wasting, shirt-pulling, hacking people down at the knees (picture Paraguay’s shithousery against France in the World Cup) and still walked off winners. I hated it, but the result said they were the better side.
Is that
0
5
The strongest experimental hint that gravity is quantum in nature
If you were to break down the matter in our Universe to its smallest and most fundamental subatomic constituents, you’d find that everything was made up of individual quanta, each of which possesses both wave and particle properties simultaneously. If you pass one of these quantum particles through a double-slit and don’t observe which slit it passes through, the quantum will behave as a wave, interfering with itself on its journey and leaving us with only a probabilistic set of outcomes to desc
0
7
When to trust your intuition (and when not to)
Intuition is having a moment. If you listen to podcasts or read nonfiction books, you’ll hear similar advice: trust your gut, listen to your body, follow your instincts.
The trouble is that what we colloquially call “intuition” carries no label telling you where it came from. It can be based on expertise built over years. But sometimes it’s a cognitive bias. And sometimes it’s just fear.
So it’s worth asking what intuition really is. The research points to something less vague and more useful th
0
5
What living systems teach us about true agency
We call AI systems “agents” all the time. But what does “agency” actually mean?
Alan Love, philosopher and professor at the University of Minnesota Twin Cities, argues that biology offers a more careful way to think about goal-directed behavior, function, and, eventually, machine intelligence. From earthworms reshaping soil to organisms selecting between behavioral options, living systems reveal forms of agency that are easy to overlook — and difficult to reduce to simple stimulus-response beha
0
5
Why the world needs all three 30-meter class telescopes
If you want to view the Universe in a way that takes us past our current frontiers, you only have a few options. You can build a larger telescope: with greater surface area to collect light and a larger diameter to increase your resolution. You can polish your mirror’s surface to be more reflective and smoother: down to nanometer-scale precision. You can keep it clean and pristine: reducing your noise. You can build improved adaptive optics systems: better correcting for the distortion of the at
0
5
The hidden mathematics behind why you find things beautiful
“Some people will hate what I say,” the mathematician Marcus du Sautoy tells me, “because it’s all about unweaving the rainbow. Some people want to retain the magic and don’t want to know why something’s working. That’s fine. But actually, for me, you know, the rainbow becomes much more interesting when you understand what is happening to the light that makes the rainbow like that.”
Du Sautoy, the Simonyi Professor for the Public Understanding of Science and Professor of Mathematics at the Unive
0
5
The community healthcare model transforming lives across West Africa
In parts of West Africa, getting sick used to mean navigating a maze of barriers — distance, cost, time spent away from work — before ever seeing a health worker. Muso set out to change that.
Working hand-in-hand with governments, they built a model where professional community health workers bring care directly to patients’ doors within 24 hours, at no cost. And because these health workers are from the communities they serve, trust in the new process is already built in; they’re not strangers
0
6
We caught an ocean of plasma waves “breaking” on the Sun
The Sun is so much more than a shining ball of energetic plasma.
This incredible still image from the National Science Foundation’s Daniel K. Inouye Solar Telescope (DKIST) is the highest-resolution image of the Sun’s surface (i.e., photosphere) ever acquired. The image is taken at a wavelength of 416 nanometers, and showcases several features known to arise in fluid flow, such as the Kelvin-Helmholtz instability.
Credit: NSF/NSO/AURA/MPS
Its fluid surface is ocean-like: with plasma curre
0
5
How to think clearly when everything feels like an emergency
You’re driving. Your phone is going off in the cupholder: three Slack pings, a text from your manager, an email stamped “URGENT” that is almost certainly not. Then your kid throws up in the back seat. It’s everywhere. Oh god, it’s everywhere.
Now something — or namely, someone — actually needs you. There is at least one real emergency to deal with, and it involves a bucket and a mop, but your body has been treating the phone like a five-alarm fire for the last ten minutes, if not the last two we
0
8
Starts With A Bang podcast #132 – Space in the ultraviolet
Whenever you look at the Universe in a more powerful way than you ever have before, either in a new set of wavelengths, at higher sensitivity, on wider-field scales, or with novel capabilities, you open yourself up to a remarkable possibility. In addition to the “obvious” science gains that you’ll achieve from finding more examples and revealing greater details about the types of objects and events you already know about, you also give the Universe an opportunity to surprise you: by finding thin
0
6
Big Think’s 5 favorite nonfiction books of 2026 (so far)
We’re only halfway through 2026, and already, the year has been filled to bursting with amazing books on any subject you’d care to learn about. Our book coverage alone has run the gamut, touching on subjects as diverse as mental health, dinosaurs, social connections, chaos theory, love, Greek myths, science fiction, and economies. And then there were the many histories about things like war, colors, soccer, medical myths, information technology, and politics (so much politics).
As we enter the p
0
8
Ask Ethan: What would “first life” see in their night sky?
We see our Universe as it is today: 13.8 billion years after the Big Bang. Because of how quickly and how long it’s been expanding and cooling, the Universe is now sparse, possessing less than 1 proton per cubic meter of normal matter on average. Dark matter and dark energy, not normal matter, dominate our Universe’s contents today, and the expansion rate is much lower, around 70 km/s/Mpc, than it was at earlier times. The cosmic microwave background, or the Big Bang’s leftover glow, is a mere 2
0
5
Understanding our modern crisis of meaning
Arthur Brooks studies happiness for a living, and he says the epidemic of depression and anxiety among young adults comes down to one culprit: a meaning crisis.
Brooks walks through the biology of falling in love, the real formula behind human suffering, and why a Harvard study spanning 85 years found deep relationships to be the single strongest predictor of a happy old age.
This video Understanding our modern crisis of meaning is featured on Big Think.
0
8
America doesn’t need new politicians. It needs a more political competition.
“Hey, Yang, where’s my thousand bucks?” It’s a question entrepreneur and political commentator Andrew Yang hears a lot. So often, he turned it into the title of his new memoir, Hey Yang, Where’s My Thousand Bucks? and Other True Stories of Staggering Depth.
It’s not a bad question to ask. Universal basic income (UBI) was a core talking point of Yang’s energizing but ultimately unsuccessful 2020 presidential campaign, as well as his run for mayor of New York two years later, where he hoped to tes
0
8
Comedian Margaret Cho meets the person she used to be
Born in the U.S. and taken to Korea after her father’s deportation, comedian Margaret Cho grew up between cultures, experienced sexual assault at a young age, and came of age in her parents’ gay bookstore during the AIDS crisis, where loss and public rhetoric left a lasting mark. Cho’s comedy career started at age 15, and she later became the star of the ’90s sitcom All-American Girl, where she faced intense industry pressure around her body and public image. Years later, she began confronting t
0
5
Ask Ethan: Why are astronauts weightless while still in Earth’s gravity?
If you stand here on the surface of the Earth, whether at the north pole where the acceleration is greatest or at the su
0
6
These 4 behaviors predict divorce with startling accuracy
Every marriage’s disintegration is marked by the same four warning signs that researchers John and Julie Gottman can spo
0
5
3 ways to make your own luck
Three people are sitting on a bench: a wise man between two fools.
One fool is called “Pointless.” They argue that the u
0
4
Gravity can’t be an instantaneous force
When you look at the Sun, the light you’re seeing isn’t the light that’s being emitted right now. Instead, you’re seeing
0
4
Psychologist: The blueprint for developing a healthy relationship with your emotions
Stress has a branding problem. Clinical psychologist Dr. Lisa Damour argues that most of us have the wrong relationship
0
4
How not to confuse good outcomes for good decision-making
In my decades of playing soccer, I’ve taken part in hundreds of games. I’ve played in games where we dominated and lost.
0
5
The strongest experimental hint that gravity is quantum in nature
If you were to break down the matter in our Universe to its smallest and most fundamental subatomic constituents, you’d
0
7
When to trust your intuition (and when not to)
Intuition is having a moment. If you listen to podcasts or read nonfiction books, you’ll hear similar advice: trust your
0
5
What living systems teach us about true agency
We call AI systems “agents” all the time. But what does “agency” actually mean?
Alan Love, philosopher and professor at
0
5
Why the world needs all three 30-meter class telescopes
If you want to view the Universe in a way that takes us past our current frontiers, you only have a few options. You can
0
5
The hidden mathematics behind why you find things beautiful
“Some people will hate what I say,” the mathematician Marcus du Sautoy tells me, “because it’s all about unweaving the r
0
5
The community healthcare model transforming lives across West Africa
In parts of West Africa, getting sick used to mean navigating a maze of barriers — distance, cost, time spent away from
0
6
We caught an ocean of plasma waves “breaking” on the Sun
The Sun is so much more than a shining ball of energetic plasma.
This incredible still image from the National Scienc
0
5
How to think clearly when everything feels like an emergency
You’re driving. Your phone is going off in the cupholder: three Slack pings, a text from your manager, an email stamped
0
8
Starts With A Bang podcast #132 – Space in the ultraviolet
Whenever you look at the Universe in a more powerful way than you ever have before, either in a new set of wavelengths,
0
6
Big Think’s 5 favorite nonfiction books of 2026 (so far)
We’re only halfway through 2026, and already, the year has been filled to bursting with amazing books on any subject you
0
8
Ask Ethan: What would “first life” see in their night sky?
We see our Universe as it is today: 13.8 billion years after the Big Bang. Because of how quickly and how long it’s been
0
5
Understanding our modern crisis of meaning
Arthur Brooks studies happiness for a living, and he says the epidemic of depression and anxiety among young adults come
0
8
Ask Ethan: Why are astronauts weightless while still in Earth’s gravity?
If you stand here on the surface of the Earth, whether at the north pole where the acceleration is greatest or at the summit of Huascarán where it’s the smallest, you’ll be pulled toward the center of the Earth with an acceleration of 9.8 m/s²: the acceleration due to gravity, or “1g” on the surface of the Earth. Sure, there are tiny variations that will ensue, as your distance from Earth’s center, the speed of the planet’s rotation beneath your feet, and the density and composition of Earth’s c
0
6 👁
These 4 behaviors predict divorce with startling accuracy
Every marriage’s disintegration is marked by the same four warning signs that researchers John and Julie Gottman can spot before a couple even finishes their first sentence.
The founders of the Gottman Institute break down decades of lab research on why relationships collapse, and what to look for in a partner so they can make it 50 years by your side.
This video These 4 behaviors predict divorce with startling accuracy is featured on Big Think.
0
5 👁
3 ways to make your own luck
Three people are sitting on a bench: a wise man between two fools.
One fool is called “Pointless.” They argue that the universe is cold and uncaring to human needs. We can try as hard as we want and plan as long as we can, but at the end of the day, the world will have its way. A bullet, a disease, a speeding truck, a single sentence from a powerful person — they’ll each determine our lives, so trying to plan is pointless.
The other fool is called “Control.” They say we are in charge of everythi
0
4 👁
Gravity can’t be an instantaneous force
When you look at the Sun, the light you’re seeing isn’t the light that’s being emitted right now. Instead, you’re seeing light that’s a little more than eight minutes old, since the Sun is some 150 million kilometers (93 million miles) away, and light — although it’s fast — can only travel through the Universe at a specific speed: the speed of light. But what about gravitation? Everything on Earth experiences the Sun’s gravitational pull, but is the gravity that the Earth experiences as it orbit
0
4 👁
Psychologist: The blueprint for developing a healthy relationship with your emotions
Stress has a branding problem. Clinical psychologist Dr. Lisa Damour argues that most of us have the wrong relationship with discomfort entirely, treating stress like a malfunction instead of what it actually is: a signal that we’re growing.
This video Psychologist: The blueprint for developing a healthy relationship with your emotions is featured on Big Think.
0
4 👁
How not to confuse good outcomes for good decision-making
In my decades of playing soccer, I’ve taken part in hundreds of games. I’ve played in games where we dominated and lost. I’ve played in games where we were awful yet somehow scraped through to win. I’ve played in games where the other team cheated the whole way through with time-wasting, shirt-pulling, hacking people down at the knees (picture Paraguay’s shithousery against France in the World Cup) and still walked off winners. I hated it, but the result said they were the better side.
Is that
0
5 👁
The strongest experimental hint that gravity is quantum in nature
If you were to break down the matter in our Universe to its smallest and most fundamental subatomic constituents, you’d find that everything was made up of individual quanta, each of which possesses both wave and particle properties simultaneously. If you pass one of these quantum particles through a double-slit and don’t observe which slit it passes through, the quantum will behave as a wave, interfering with itself on its journey and leaving us with only a probabilistic set of outcomes to desc
0
7 👁
When to trust your intuition (and when not to)
Intuition is having a moment. If you listen to podcasts or read nonfiction books, you’ll hear similar advice: trust your gut, listen to your body, follow your instincts.
The trouble is that what we colloquially call “intuition” carries no label telling you where it came from. It can be based on expertise built over years. But sometimes it’s a cognitive bias. And sometimes it’s just fear.
So it’s worth asking what intuition really is. The research points to something less vague and more useful th
0
5 👁
What living systems teach us about true agency
We call AI systems “agents” all the time. But what does “agency” actually mean?
Alan Love, philosopher and professor at the University of Minnesota Twin Cities, argues that biology offers a more careful way to think about goal-directed behavior, function, and, eventually, machine intelligence. From earthworms reshaping soil to organisms selecting between behavioral options, living systems reveal forms of agency that are easy to overlook — and difficult to reduce to simple stimulus-response beha
0
5 👁
Why the world needs all three 30-meter class telescopes
If you want to view the Universe in a way that takes us past our current frontiers, you only have a few options. You can build a larger telescope: with greater surface area to collect light and a larger diameter to increase your resolution. You can polish your mirror’s surface to be more reflective and smoother: down to nanometer-scale precision. You can keep it clean and pristine: reducing your noise. You can build improved adaptive optics systems: better correcting for the distortion of the at
0
5 👁
The hidden mathematics behind why you find things beautiful
“Some people will hate what I say,” the mathematician Marcus du Sautoy tells me, “because it’s all about unweaving the rainbow. Some people want to retain the magic and don’t want to know why something’s working. That’s fine. But actually, for me, you know, the rainbow becomes much more interesting when you understand what is happening to the light that makes the rainbow like that.”
Du Sautoy, the Simonyi Professor for the Public Understanding of Science and Professor of Mathematics at the Unive
0
5 👁
The community healthcare model transforming lives across West Africa
In parts of West Africa, getting sick used to mean navigating a maze of barriers — distance, cost, time spent away from work — before ever seeing a health worker. Muso set out to change that.
Working hand-in-hand with governments, they built a model where professional community health workers bring care directly to patients’ doors within 24 hours, at no cost. And because these health workers are from the communities they serve, trust in the new process is already built in; they’re not strangers
0
6 👁
We caught an ocean of plasma waves “breaking” on the Sun
The Sun is so much more than a shining ball of energetic plasma.
This incredible still image from the National Science Foundation’s Daniel K. Inouye Solar Telescope (DKIST) is the highest-resolution image of the Sun’s surface (i.e., photosphere) ever acquired. The image is taken at a wavelength of 416 nanometers, and showcases several features known to arise in fluid flow, such as the Kelvin-Helmholtz instability.
Credit: NSF/NSO/AURA/MPS
Its fluid surface is ocean-like: with plasma curre
0
5 👁
How to think clearly when everything feels like an emergency
You’re driving. Your phone is going off in the cupholder: three Slack pings, a text from your manager, an email stamped “URGENT” that is almost certainly not. Then your kid throws up in the back seat. It’s everywhere. Oh god, it’s everywhere.
Now something — or namely, someone — actually needs you. There is at least one real emergency to deal with, and it involves a bucket and a mop, but your body has been treating the phone like a five-alarm fire for the last ten minutes, if not the last two we
0
8 👁
Starts With A Bang podcast #132 – Space in the ultraviolet
Whenever you look at the Universe in a more powerful way than you ever have before, either in a new set of wavelengths, at higher sensitivity, on wider-field scales, or with novel capabilities, you open yourself up to a remarkable possibility. In addition to the “obvious” science gains that you’ll achieve from finding more examples and revealing greater details about the types of objects and events you already know about, you also give the Universe an opportunity to surprise you: by finding thin
0
6 👁
Big Think’s 5 favorite nonfiction books of 2026 (so far)
We’re only halfway through 2026, and already, the year has been filled to bursting with amazing books on any subject you’d care to learn about. Our book coverage alone has run the gamut, touching on subjects as diverse as mental health, dinosaurs, social connections, chaos theory, love, Greek myths, science fiction, and economies. And then there were the many histories about things like war, colors, soccer, medical myths, information technology, and politics (so much politics).
As we enter the p
0
8 👁
Ask Ethan: What would “first life” see in their night sky?
We see our Universe as it is today: 13.8 billion years after the Big Bang. Because of how quickly and how long it’s been expanding and cooling, the Universe is now sparse, possessing less than 1 proton per cubic meter of normal matter on average. Dark matter and dark energy, not normal matter, dominate our Universe’s contents today, and the expansion rate is much lower, around 70 km/s/Mpc, than it was at earlier times. The cosmic microwave background, or the Big Bang’s leftover glow, is a mere 2
0
5 👁
Understanding our modern crisis of meaning
Arthur Brooks studies happiness for a living, and he says the epidemic of depression and anxiety among young adults comes down to one culprit: a meaning crisis.
Brooks walks through the biology of falling in love, the real formula behind human suffering, and why a Harvard study spanning 85 years found deep relationships to be the single strongest predictor of a happy old age.
This video Understanding our modern crisis of meaning is featured on Big Think.
0
8 👁
America doesn’t need new politicians. It needs a more political competition.
“Hey, Yang, where’s my thousand bucks?” It’s a question entrepreneur and political commentator Andrew Yang hears a lot. So often, he turned it into the title of his new memoir, Hey Yang, Where’s My Thousand Bucks? and Other True Stories of Staggering Depth.
It’s not a bad question to ask. Universal basic income (UBI) was a core talking point of Yang’s energizing but ultimately unsuccessful 2020 presidential campaign, as well as his run for mayor of New York two years later, where he hoped to tes
0
8 👁
Comedian Margaret Cho meets the person she used to be
Born in the U.S. and taken to Korea after her father’s deportation, comedian Margaret Cho grew up between cultures, experienced sexual assault at a young age, and came of age in her parents’ gay bookstore during the AIDS crisis, where loss and public rhetoric left a lasting mark. Cho’s comedy career started at age 15, and she later became the star of the ’90s sitcom All-American Girl, where she faced intense industry pressure around her body and public image. Years later, she began confronting t
0
5 👁
Ask Ethan: Why are astronauts weightless while still in Earth’s gravity?
If you stand here on the surface of the Earth, whether at the north pole where the acceleration is greatest or at the summit of Hu…
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👁 6
These 4 behaviors predict divorce with startling accuracy
Big Think · Aug 14, 2026
💬 0
👁 5
3 ways to make your own luck
Big Think · Aug 13, 2026
💬 0
👁 4
Gravity can’t be an instantaneous force
Big Think · Aug 13, 2026
💬 0
👁 4

Psychologist: The blueprint for developing a healthy relationship with your emotions
Big Think · Aug 13, 2026

How not to confuse good outcomes for good decision-making
Big Think · Aug 12, 2026

The strongest experimental hint that gravity is quantum in nature
Big Think · Aug 12, 2026

When to trust your intuition (and when not to)
Big Think · Aug 11, 2026
What living systems teach us about true agency
We call AI systems “agents” all the time. But what does “agency” actually mean?
Alan Love, philosopher and professor at the Unive…
💬 0
👁 5
Why the world needs all three 30-meter class telescopes
Big Think · Aug 11, 2026
💬 0
👁 5
The hidden mathematics behind why you find things beautiful
Big Think · Aug 10, 2026
💬 0
👁 5
The community healthcare model transforming lives across West Africa
Big Think · Aug 10, 2026
💬 0
👁 6

We caught an ocean of plasma waves “breaking” on the Sun
Big Think · Aug 10, 2026

How to think clearly when everything feels like an emergency
Big Think · Aug 9, 2026

Starts With A Bang podcast #132 – Space in the ultraviolet
Big Think · Aug 8, 2026

Big Think’s 5 favorite nonfiction books of 2026 (so far)
Big Think · Jul 31, 2026
Ask Ethan: What would “first life” see in their night sky?
We see our Universe as it is today: 13.8 billion years after the Big Bang. Because of how quickly and how long it’s been expanding…
💬 0
👁 5