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.

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

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

These massive currents carry material on a journey through and around star-forming galaxies before they settle and form stars ...

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

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

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.

Astronomical observatories use several techniques to compensate for distortions in images caused by our atmosphere.

The company has outlined its proposed architecture to return martian rock and dust samples to Earth for research.

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

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