Quanta
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![[:es]Mathematicians Settle Erdős Coloring Conjecture[:]](https://katedra.eus/app/uploads/2021/04/EFL-Hypergraphs_2880_Lede-scaled.jpg)
[:es]Mathematicians Settle Erdős Coloring Conjecture[:]
Fifty years ago, Paul Erdős and two other mathematicians came up with a graph theory problem that they thought they might solve on the spot. A team of mathematicians has […]
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![[:es]Mathematicians Find a New Class of Digitally Delicate Primes[:]](https://katedra.eus/app/uploads/2021/04/Prime_Counter_2880x1620_Lede-scaled.jpg)
[:es]Mathematicians Find a New Class of Digitally Delicate Primes[:]
Despite finding no specific examples, researchers have proved the existence of a pervasive kind of prime number so delicate that changing any of its infinite digits renders it composite.
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![[:es]Long-Missing Midsize Black Hole Flashes Into View[:]](https://katedra.eus/app/uploads/2021/03/Midweight_BH_2880x1620_Lede-scaled.jpg)
[:es]Long-Missing Midsize Black Hole Flashes Into View[:]
Black holes seemed to come only in sizes small and XXL. A new search strategy has uncovered a black hole of “intermediate” mass, raising hopes of more to come.
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![[:es]Scientists Pin Down When Earth’s Crust Cracked, Then Came to Life[:]](https://katedra.eus/app/uploads/2021/03/Rock-Sections_4K_Lede-scaled.jpg)
[:es]Scientists Pin Down When Earth’s Crust Cracked, Then Came to Life[:]
New data indicating that Earth’s surface broke up about 3.2 billion years ago helps clarify how plate tectonics drove the evolution of complex life.
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![[:es]Matrix Multiplication Inches Closer to Mythic Goal[:]](https://katedra.eus/app/uploads/2021/03/Matrix_multiplication_2880x1620_Lede-scaled.jpg)
[:es]Matrix Multiplication Inches Closer to Mythic Goal[:]
A recent paper set the fastest record for multiplying two matrices. But it also marks the end of the line for a method researchers have relied on for decades to […]
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![[:es]Why Extraterrestrial Life May Not Seem Entirely Alien[:]](https://katedra.eus/app/uploads/2021/03/Arik-Kershenbaum_2560_Lede.jpg)
[:es]Why Extraterrestrial Life May Not Seem Entirely Alien[:]
The zoologist Arik Kershenbaum argues that because some evolutionary challenges are truly universal, life throughout the cosmos may share certain features.
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![[:es]A New Twist Reveals Superconductivity’s Secrets[:]](https://katedra.eus/app/uploads/2021/03/Graphene-Skyrmions_2880_Lede-scaled.jpg)
[:es]A New Twist Reveals Superconductivity’s Secrets[:]
An unexpected superconductor was beginning to look like a fluke, but a new theory and a second discovery has revealed that emergent quasiparticles may be behind the effect.
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![[:es]Quantum Mischief Rewrites the Laws of Cause and Effect[:]](https://katedra.eus/app/uploads/2021/03/Causal-Order_2880_Lede-scaled.jpg)
[:es]Quantum Mischief Rewrites the Laws of Cause and Effect[:]
Spurred on by quantum experiments that scramble the ordering of causes and their effects, some physicists are figuring out how to abandon causality altogether.
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![[:es]New Kind of Space Explosion Reveals the Birth of a Black Hole[:]](https://katedra.eus/app/uploads/2021/03/New_Supernova_2880x1620_Lede-scaled.jpg)
[:es]New Kind of Space Explosion Reveals the Birth of a Black Hole[:]
A supernova-like explosion dubbed the Camel appears to be the result of a newborn black hole eating a star from the inside out.
