The month brings a spectacular lineup of celestial sights—including a rare chance to see Mercury without a telescope and a ...

A viral photo claiming to show interstellar object 3I/ATLAS over Argentina has gone global — but astronomers say it's almost ...

Over the past seven decades, thousands of sophisticated spacecraft have been launched on ambitious missions to look down on ...

The Orionid meteor shower peaked on the nights of Oct. 21-23, delighting lucky stargazers with a gorgeous natural fireworks ...

Lemmon, which is a rare green comet, can be seen with the naked eye on Oct. 21, according to the Royal Astronomical Society, ...

Members of a Boone County Facebook group shared images and a video of what looked like a streak of fire falling in the sky ...

The Polish Air Force’s C-130E Hercules roared over Leszno before releasing a breathtaking mass flare dump that turned the ...

Tonight’s skies could glow with colorful auroras across 12 states as a burst of solar wind sparks a minor geomagnetic storm.

The sky is filled with rare celestial treats this week. Want to spot some cool comets? Here's what to know about comets ...

Comets Lemmon and SWAN are nearing Earth in a rare double cosmic treat. Where and what time can you see them? What to know.

What we celebrate today as Halloween has its beginnings in a thousands-of-years old Celtic tradition based on the Seven ...

This is the dramatic moment a meteor illuminated the night sky as it burned up over Thailand. Dashcam footage shows the ...