Most of us first hear about the irrational number π (pi)—rounded off as 3.14, with an infinite number of decimal digits—in ...

Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today?

Learn how to calculate when and where two trains will meet! This video walks you through the process of using relative speed and distance to find the exact point and time of intersection. Perfect for ...

Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

Neil deGrasse Tyson explores why the speed of light is a fundamental limit of the universe, shaping causality, time, and ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

If you're going to Mars you'd best take along a jar of anti-aging cream because while you're there you're going to age faster ...

How the world of the smallest particles is structured, what is known about fundamental forces, and what particles have to do ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

The world of bits moves fast. The world of atoms doesn’t. And data centers are where those two worlds collide.” ...