The night sky from a national park is spectacularly dark. More stars are visible than you can imagine, and the Milky Way ...

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

Four of Earth’s neighbors are about to appear in a planetary alignment. Those four planets — Mercury, Venus, Neptune and ...

The night sky tonight and on any clear night offers an ever-changing display of fascinating objects you can see, from stars and constellations to bright planets, the moon, and sometimes special ...

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

For more than a millennium, Orthodox Christian monks have woken up in the predawn darkness to start their day with prayer at ...

Mars and the moon will also be in conjunction tonight. If you're lucky enough to have clear skies tonight, you can catch a ...