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Physics4073 articles archived since 1845

Redefining the Kilogram

Officials will vote to overhaul the SI system of measurements, basing units such as the kilogram not on physical objects but on fundamental constants

October 29, 2018 — Clara Moskowitz

Planet Formation? It's a Drag

The way worlds form from dust may also explain other phenomena throughout the universe—and right here on Earth

October 18, 2018 — Marcus Woo

The Unsolvable Problem

After a years-long intellectual journey, three mathematicians have discovered that a problem of central importance in physics is impossible to solve—and that means other big questions may be undecidable, too

October 9, 2018 — Toby S. Cubitt, David Pérez-García and Michael Wolf

Nobel in Physics for Controlling Laser Light

Arthur Ashkin, Gérard Mourou and Donna Strickland share the 2018 physics Nobel for their work with lasers that have led to numerous practical applications, such as eye surgery.

October 2, 2018 — Steve Mirsky

Measure the Pressure

A weather-predicting science project from Science Buddies

September 27, 2018 — Science Buddies and Svenja Lohner