Erica Klarreich

Freelance Mathematics and Science Journalist

Berkeley, California

Erica Klarreich

I am an award-winning mathematics and science journalist whose work has appeared in Quanta, Nature, The Atlantic, New Scientist and many other publications, and has been reprinted in the 2010, 2011, 2016 and 2020 volumes of "The Best Writing on Mathematics."


Mathematician Hurls Structure and Disorder Into Century-Old Problem

December 15, 2021 — A new paper shows how to create longer disordered strings than mathematicians had thought possible, proving that a well-known recent conjecture is “spectacularly wrong.”
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Mathematician Disproves 80-Year-Old Algebra Conjecture

April 12, 2021 — Inside the symmetries of a crystal shape, a postdoctoral researcher has unearthed a counterexample to a basic conjecture about multiplicative inverses.
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Statistics Postdoc Tames Decades-Old Geometry Problem

March 1, 2021 — To the surprise of experts in the field, a postdoctoral statistician has solved one of the most important problems in high-dimensional convex geometry.
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Computer Scientists Achieve ‘Crown Jewel’ of Cryptography

November 10, 2020 — A cryptographic master tool called indistinguishability obfuscation has for years seemed too good to be true. Three researchers have figured out that it can work.
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Computer Scientists Break Traveling Salesperson Record

October 8, 2020 — After 44 years, there’s finally a better way to find approximate solutions to the notoriously difficult traveling salesperson problem.
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Mathematicians Report New Discovery About the Dodecahedron

August 31, 2020 — Three mathematicians have resolved a fundamental question about straight paths on the 12-sided Platonic solid.
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Landmark Math Proof Clears Hurdle in Top Erdős Conjecture

August 3, 2020 — Two mathematicians have proved the first leg of Paul Erdős’ all-time favorite problem about number patterns.
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A Number Theorist Who Solves the Hardest Easy Problems

July 1, 2020 — In his rapid ascent to the top of his field, James Maynard has cut a path through simple-sounding questions about prime numbers that have stumped mathematicians for centuries.
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In a Single Measure, Invariants Capture the Essence of Math Objects

June 2, 2020 — To distinguish between fundamentally different objects, mathematicians turn to invariants that encode the objects’ essential features.
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Graduate Student Solves Decades-Old Conway Knot Problem

May 19, 2020 — It took Lisa Piccirillo less than a week to answer a long-standing question about a strange knot discovered over half a century ago by the legendary John Conway.
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‘Amazing’ Math Bridge Extended Beyond Fermat’s Last Theorem

April 6, 2020 — Mathematicians have figured out how to expand the reach of a mysterious bridge connecting two distant continents in the mathematical world.
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What Is the Geometry of the Universe?

March 16, 2020 — In our mind’s eye, the universe seems to go on forever. But using geometry we can explore a variety of three-dimensional shapes that offer alternatives to “ordinary” infinite space.
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Erica Klarreich

I have been writing about mathematics and science for a popular audience for more than 20 years. A mathematician before I became a full-time journalist, I try to convey the essence of complex mathematical ideas to non-mathematicians, and give them a sense of the beauty and depth of mathematics.

I also enjoy plunging into topics far from my mathematical roots, and have written about fields such as economics, computer science, medicine, and biology — often as these fields relate to mathematics, but often simply for their own sake.

As a freelance journalist based in Berkeley, California, I have written for many publications, including Quanta Magazine, Nature,, New Scientist, American Scientist,, Nautilus, and Science News, for which I was the mathematics correspondent for several years. I've also been the journalist in residence at the Mathematical Sciences Research Institute in Berkeley and at the Simons Institute for the Theory of Computing at the University of California, Berkeley. My work has been reprinted in the 2010, 2011, 2016 and 2020 volumes of "The Best Writing on Mathematics."

I received the 2021 Communications Award from the Joint Policy Board for Mathematics, which recognizes journalists and other communicators who, on a sustained basis, bring accurate mathematical information to nonmathematical audiences.

I am a graduate of the science writing program at the University of California, Santa Cruz, and I have a Ph.D. in mathematics from Stony Brook University.

Contact me at

Follow me on Twitter at @EricaKlarreich