Astrophysics

A new interpretation of Isaac Newton’s writings clarifies what the father of classical mechanics meant in his first law of motion

Yellow, white or maybe even green—the sun’s hue depends on how you see it

Scientists debate what the future of the cosmos looks like and whether space will ever stop getting bigger and bigger

From dim red to brilliant blue, stellar colors span the spectrum—and reveal how much any star brings the heat

Magnetars possess magnetic fields that are trillions of times stronger than those of ordinary stars. Now we might have seen one of these extraordinary objects about to form

Astronomers are now seeking to pinpoint the origins of an exciting new form of gravitational waves that was announced earlier this year

An artist, a programmer and a scientist have created a simulation of extraterrestrial communication to test Earthlings’ ability to understand it

Scientists have developed a new model to predict how much “gravity waves” could alter a star’s brightness

New measurements from Japan’s Subaru telescope have helped researchers study the matter-antimatter asymmetry problem

Experts weigh in on the most shocking, paradigm-shifting and delightful findings in the history of physics

Astrophysicist Aomawa Shields recounts her alternative career path in a new memoir about life, space and motherhood

Astronomers are piecing together the final moments of supernova 2023ixf and learning more about it than any other in recent history