The Universe

The March 13–14 lunar eclipse will be an all-night affair you won’t want to miss

Whether aliens could detect our modern civilization depends on what signs they’re looking for—and, crucially, their distance from us

With radio and infrared telescopes, astronomers can pierce the dusty veil of our galaxy and map its farthest reaches

It’s neither fast nor food, but a spectacular object called HH 30 looks appetizing for astronomers in a new image from the James Webb Space Telescope

“Keep your eye on the ball” is a motto for many athletes—and for astronomers trying to find Earth-threatening space rocks

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define

This year, from Earth’s perspective, Saturn’s rings will appear nearly edge on, making them almost invisible

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun

The heavens will provide a bounty of viewing treasures in the coming year

The familiar zodiac constellations are defined by Earth’s motion around the sun, but they don’t define your fate

Twenty years ago today a magnetar’s epic tantrum made our planet ring like a bell from tens of thousands of light-years away

With billions of stars in the Milky Way, some nomenclature standardization is necessary