An unexplained high-energy neutrino detected three years ago could be linked to a primordial black hole, perhaps one more even unusual than previously thought

An unexplained high-energy neutrino detected three years ago could be linked to a primordial black hole, perhaps one more even unusual than previously thought

The nonprofit start-up Pioneer Labs claims to have made the first-ever “microbe for Mars.” Other experts aren’t so sure

Today Project Suncatcher is sending four AI processors into orbit on a SpaceX rocket to see whether the building blocks of a data center can survive space

The new push loosens U.S. regulations for sterilizing spacecraft bound for the Red Planet and calls for modernizing the science of “planetary protection”

Elusive, satellite-stalking spacecraft could unleash space war—or help keep orbital peace

Elusive, satellite-stalking spacecraft could unleash space war—or help keep orbital peace

The world’s largest rocket is on a 10-hour mission to to prove its mettle

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2025 was a brutal year of budget cuts and workforce attrition at NASA’s Goddard Space Flight Center, the home base for the Nancy Grace Roman Space Telescope. Experts worry Goddard—and NASA’s space sci...

OpenAI’s proof seems eligible for a million-dollar prize—but only by using a controversial loophole

The agency has awarded fewer grants in the physical sciences this year than most years in its history.

What happens when machines surpass the most brilliant human minds? Mathematicians are finding out

Prior to the announcement, rumors were circulating online among mathematicians over the proof's origins—OpenAI has denied all allegations

A mathematician compared the feat to IBM's history-making Deep Blue computer beating Gary Kasporov at chess in 1977

After a flawless launch, the Nancy Grace Roman Space Telescope is on a mission to solve some of the universe’s biggest mysteries

The world’s biggest dark matter search saw a particle it cannot explain

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A recent change in ownership is an opportunity for SciAm to be even better and have some fun

On the 20th anniversary of Pluto’s infamous demotion, Mike “Pluto Killer” Brown explains why any reversal of that decision would be driven more by nostalgia than science

Researchers have nailed down an elusive quantity called baryon number, which may be responsible for the cosmic mismatch between matter and antimatter

First glimpsed as “little red dots” in deep-space images from the James Webb Space Telescope, these giant, gas-shrouded black holes are full of surprises

A new study of the Helix Nebula shows never-before-seen details of how dying stars recycle elements. Researchers found it by accident

There’s a million-dollar prize for proving the Riemann hypothesis. Claude couldn’t pull that off, but it made significant progress on a related problem

Follow all the latest updates and learn everything you need to know about the August 12 eclipse with Scientific American

The exodus of non-US citizens has “certainly” been influenced by science funding and visa policy changes under Trump, a new AIP report says.

Strange whirlpools of plasma seen in the sharpest images ever captured of our star help explain the deep origins of Earth-threatening space weather and more

Four independent research teams report big advances in devices built with the underestimated quantum bits, including lower error rates.

A private spacecraft launched to boost the decaying orbit of NASA’s Swift Observatory is now suffering from potentially mission-ending malfunctions

After decades of hints and speculation, scientists have at last unveiled the hidden companion to the iconic star Betelgeuse

In searches for past and present Martian life, some scientists say we’ve been too cautious to see what’s right in front of us

YouTube video by Scientific American

In searches for past and present Martian life, some scientists say we’ve been too cautious to see what’s right in front of us

The 2026 Fields Medals recognize breakthroughs in the math of messy fluids, tangled knots, spinning pencils, and more