With over 2.5 million submissions over its 33 years, arXiv is the world's largest ongoing experiment in open science.

Nature is magical, and learning the secrets behind its wonders only enhances the spell.

Luna Zagorac started her astrophysics career at a small telescope where she learned that, in research, bigger doesn't mean better.

As public trust in science continues to wane, it is essential for scientists to demonstrate what science is — and what it is not — to everyone.

The universe is unfathomably large, but it could be much larger (or smaller) if it was full of different stuff.

Whether puzzling at a blackboard, scuba diving, or piloting a plane, physicist Claudia de Rham feels powerfully pulled to gravity.

Is our universe just one of many? Science journalist Dan Falk examines arguments for and against the multiverse.

Our most human characteristic is also our least understood, and physicists remain divided on questions of mind and matter.

Artificial intelligence currently demands enormous amounts of energy and memory, but advances in quantum computing may change that.

The Harvard physicist is a pioneer of celestial holography, an approach he calls “unflinching” in its rootedness in reality.

If you have never heard of kugelblitze, don't feel bad. They do not exist — and nor, new research proves, can they. 

Physicist Claudia de Rham's explores her lifelong relationship with gravity in this excerpt from her new book on the subject.

Insatiably curious with "antsy pants" about finding answers to deep questions, this physicist is happiest when faced with new challenges.

The Global Positioning System (GPS) is a U.S. space-based global navigation satellite system. It provides reliable positioning, navigation, and timing servic...

A quantum scientist and author of books for babies on the same subject, Chris Ferrie makes big ideas feel like child's play.

As organisms made of water on a watery planet, it makes sense that we humans have always likened the universe to a vast sea.

An astrophysicist and science communicator talks about life, the universe, and "the most amazing fact of all."

The state of peer review is "pretty bad," according to a watchdog monitoring the rising flood of retracted papers, but fixes are possible.

An astrophysicist and science communicator explains how the universe continually blows his mind.

You’re reading this sentence right now — but were you compelled to do so? 

Scientific American has shared the wonder of science with millions and has a storied history with some quirks you may not expect.

Astrophysics is so awash in experimental data that theorists are bound to often be fruitfully wrong about what it all means.