Astronomy

Ice crystals suspended in the air put on a gorgeous show if you know when and where to look

No one has ever seen a newborn star feeding on its natal disk anywhere outside our galaxy—that is, until now

Astronomers are moving ahead in planning NASA’s Habitable Worlds Observatory, a telescope designed to answer the ultimate question: Are we alone in the universe?

Where can you find the best sites for stargazing—and why is a dark sky important?

A strong geomagnetic storm is expected to hit Earth after several outbursts from the sun merged into one large blob of plasma

A solar outburst shoots charged particles into space—and toward Earth

This beginner’s guide to telescope basics will help make holiday shopping a little more heavenly

Money, engineering and sheer geometry may mark an end of the line for building ever larger astronomical telescopes

The Xuntian Space Telescope is China’s entry in a global race to unlock the secrets of dark energy, and it will now lift off no earlier than mid-2025

Two unusual annual meteor showers come at the end of the year, and each can spark astonishing celestial fireworks

The James Webb Space Telescope’s studies of the Crab nebula may shed new light on the supernova remnant’s origins

Reproducing in space is just one of many reasons we should delay settlements beyond Earth