Some names take decades to mean something. Others arrive fast, preceded by a string of accomplishments so staggering they barely seem real. Sabrina Gonzalez Pasterski is 32 years old, and physicists are already measuring her against the greatest scientific mind of the 20th century.
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That comparison is not handed out lightly. But when you look at what she has done, and what she is currently working on at one of the world’s most prestigious physics institutes, it becomes harder to argue against it.
It Started With a Plane Ride
At age 9, Pasterski boarded an airplane for the first time, and something changed in her. Not in a vague, storybook way. She wanted to know exactly how flight worked, why it worked, and which laws of physics made it possible.
One year later, she built a plane engine. At 12, she completed a full single-engine aircraft. At 14, a year before she could legally sit behind the wheel of a car, she took that plane up for a solo test flight.
“Building an airplane from a kit and flying as a child, I longed to understand the physics, application and reach of flight,” she said in a 2012 Scientific American interview.
For most kids, a plane ride is an adventure. For Pasterski, it was an open question she intended to answer, and that hunger to understand rather than simply experience would define everything that followed.
MIT, Harvard, and a 5.0 GPA
Pasterski grew up in Chicago as a first-generation Cuban-American, attending public schools. When she applied to MIT, the admissions office put her on the waitlist. Most students take that as a signal to reconsider their path. She did not.
She got in, and then she made history. Graduating with a perfect 5.0 GPA, Pasterski became the first female student to finish ranked first in MIT Physics. At 21, she enrolled as a PhD candidate at Harvard University.
By the time she was 19, Scientific American had already named her in their “30 Under 30” column. Forbes followed in 2015 with their own list, placing her in the Science category when she was still 21. Two separate recognitions, years apart, and she was barely old enough to rent a car for either.
Her Harvard dissertation was published in Physics Reports, making her only the second PhD candidate in Harvard’s history to reach that milestone. She earned her doctorate in 2019 and completed a postdoctoral fellowship at Princeton’s Centre for Theoretical Science shortly after.
The Research That Got Stephen Hawking’s Attention
During her years at Harvard, Pasterski and her colleagues made a discovery that placed her name in front of one of the most celebrated physicists alive at the time.
In 2014, her team identified something called the “spin memory effect,” a phenomenon tied to gravitational waves, which are ripples in spacetime produced by massive cosmic events like colliding black holes. Detecting the lasting effects of those waves had long been one of physics’ great puzzles, and Pasterski’s work offered a potential path forward.
Her findings earned her academic freedom to publish an individual paper in 2015. A year later, Stephen Hawking cited that paper, along with two of her co-authored papers, in his own work. Getting cited by Hawking at any age would be worth talking about. Getting cited at 22 is something else entirely.
Her research stretched far beyond a single finding. She worked on explanations of gravity within quantum mechanics, Low’s subleading soft theorem as a symmetry of QED, and infinite-dimensional symmetry enhancements of the S-matrix. Her work sits exactly where physics runs out of agreed answers and starts looking for new ones. “Years of pushing the bounds of what I could achieve led me to physics,” she told Yahoo in an interview.
Turning Down $1.1 Million
After Princeton, Pasterski had options. Brown University came forward with an offer of $1.1 million to join them as an assistant professor. By any standard, that is a serious offer from a serious institution. She turned it down.
Instead, she chose to join the Perimeter Institute for Theoretical Physics in Waterloo, Canada, in 2021. For those outside academic physics, Perimeter ranks among the world’s leading independent research centres, built around questions at the outer edge of what physics currently knows. What she walked away from says a great deal. What she walked toward says even more.
Leading the Celestial Holography Initiative
At Perimeter, Pasterski founded and now leads the Celestial Holography Initiative. If that sounds like something from a science fiction novel, the reality behind it is both stranger and more consequential.
Celestial holography is a research program built around encoding the universe as a hologram. More precisely, it asks whether the physics of our three-dimensional universe can be fully described by equations living on a two-dimensional boundary, much like how a flat holographic film can project a three-dimensional image.
At its heart, the work targets something physicists have chased for over a century, which is bringing together general relativity, Einstein’s description of gravity and spacetime, and quantum mechanics, our best account of how particles behave at the smallest scales. Right now, those two theories do not agree. Celestial holography is one of the stronger bets on how to make them fit.
Her current research focuses on scattering in asymptotically flat spacetimes and building what’s called a codimension-2 dual conformal field theory. In plain terms, she is trying to write a new description of reality that holds at every scale, from the quantum to the cosmic.
Beyond the Lab: Advocacy and Education
Pasterski does not keep her work locked behind journal paywalls or conference rooms. She runs a YouTube channel called PhysicsGirl, where she explains her research in ways that don’t require a physics degree to follow.
Her advocacy goes further still. In 2016, she was invited to the White House for her work with Let Girls Learn, a government initiative launched by President Barack Obama and First Lady Michelle Obama to help girls around the world access quality education. As a first-generation Cuban-American woman in a field that remains heavily male and short on diversity, her presence in that conversation carries real weight.
She has been open about wanting others, especially girls and young people from underrepresented backgrounds, to see a path into science that looks like them.
What She Thinks She’ll Discover Next
Ask Pasterski what problem she expects to solve next and she is more direct than most scientists would be.
“Physics itself is exciting enough,” she told Yahoo. “It’s not like a 9-to-5 thing. When you’re tired you sleep, and when you’re not, you do physics.”
That answer says something about how she operates. She is not managing a career. She is chasing questions. And in physics, that is often the difference between someone who publishes papers and someone who changes what we know.
Her approach mirrors what she said to Discovery Canada, that the fun part of physics is not knowing exactly what you will work on next, because when something is truly right, it changes direction fast and without warning.
What She Means for the Rest of Us
When someone spends their days trying to encode the entire universe as a hologram, it raises a question most of us never stop to ask. Where do we fit in all of it?
Pasterski’s work pushes at something humans have wrestled with since we first looked up at the night sky. We want to know whether the universe has a structure we can grasp, and whether the laws that govern black holes and quantum particles have anything to say about the rest of us.
She does not offer easy answers. But her career offers something more useful. A person who grew up in Chicago public schools, got waitlisted at MIT, built an airplane in her teenage years, and now leads a team trying to rewrite our understanding of spacetime makes it genuinely difficult to accept that limits are fixed.
At Harvard, she once said she sees no limit to what we can achieve and treats the word impossible as a challenge rather than a conclusion. That attitude is not just a motivational line. It is a way of doing science.
If Pasterski and her colleagues manage to unite quantum mechanics with gravity, the effects will reach well beyond physics departments. Our understanding of time, space, and what it means to exist in a universe governed by knowable laws will change in ways we cannot fully anticipate right now.
Somewhere in all of that, there is a reminder that the biggest questions in human history have often been answered by people who simply refused to stop asking them. And somewhere in Chicago, a 9-year-old who just stepped off a plane for the first time is already wondering how it works.
Featured Image Source: Wikimedia Commons https://upload.wikimedia.org/wikipedia/commons/9/92/Sabrina_Gonzalez_Pasterski_2006.png
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