Venus and Saturn are due up for a visually striking event known as a planetary conjunction. Here's everything to know about ...

Billions of stars fill our galaxy that become visible at certain times of year. And in the U.S., that time, known as "Milky ...

New data about the DART spacecraft’s effects adds evidence that Earth could be defended from future deadly asteroids by diverting their orbits.

Scientists gathered in a conference earlier this year in an effort to solve the issue of satellite streaks ruining a powerful new Earth-based observatory's data.

Your guide to April's full Pink Moon, from peak times to skywatching highlights.

The change is subtle and happens over many nights.

A major recent development has painted a clearer picture of the universe as NASA has began checking Hubble's images after ...

The Moon is disappearing from view.

Americans are preparing for the strongest auroras in recent memory. The Northern Lights this March will be larger and easier to view in some states.

Astronomers have discovered the brightest and most distant "megamaser" to date. The cosmic energy beam is shooting toward ...

A total lunar eclipse was visible to more than three billion people in the sky on Tuesday morning, with the moon glowing a spectacular shade of blood-red. “It’s as if all of the world’s sunrises and ...

New images from the NASA/ESA Hubble Space Telescope and ESA’s Euclid mission have revealed the complex, multi-shell structure ...