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The 2001 Roadless Area Conservation Rule protects the nation’s forests from logging and other industry activities

Cryptographers use points along a curve to crack especially tough codes

The unicorn of the sea’s spiral tooth has long been a scientific enigma

The same people affected by extreme weather are also likely to worry that they will face a future disaster, according to a new poll

Two new missions are revealing how robotic repair and assembly could become routine on the final frontier

Explore the Tetris paradox in this math puzzle

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

SpaceX and other companies want to put millions of satellites into space. Could orbit run out of room?

Letters to the editors for the April 2026 issue of Scientific American

The conservative think tank’s report claims that high-intensity and elite sports training has lasting effects on menstrual cycles and fertility

Here are four reasons solar energy has seen a meteoric rise in recent years

Science in meter and verse