The case of mistaken identity was quickly resolved, but astronomers say it shows the need for transparency around craft in ...

In this episode, Dave Eicher invites you to go out and watch a close pairing of two naked-eye planets: Venus and Saturn. The ...

Because the period of an object does not depend on its mass, comets’ orbital periods remain unchanged due to mass loss.

This rare quasar with spiral arms could help astronomers understand how supermassive black holes feed and grow.

Found less than a billion years after the Big Bang, these massive objects are upending astronomers’ timeline for how early ...

Plus: Saturn’s moon Iapetus is visible, our Moon passes the bright star Spica, and Mars skims south of Pollux in Gemini in ...

The Red Planet comes closest to Earth, disappears behind the Moon in an occultation, and finally reaches opposition in the ...

Extractable water near the south pole of our closest celestial neighbor promises a new spark for future space explorers.

The lanes and clouds of dust in the star-forming Orion Nebula (M42) reveal a dark dimension to this familiar object.

After exploding, the craft sent blazing debris across the sky and forced multiple aircraft flying over and near the Caribbean ...

The key NASA center remains under a mandatory evacuation order, but officials say both it and Mount Wilson are protected for ...

The Red Planet reaches its best position all year this week on January 15. Here’s how and when to get out and see it.