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

Planets with suns like Wolf 359 are subject to huge blasts of radiation that raise questions about their long-term habitability.

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

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 ...

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

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

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

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

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

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