The moon's ascending node (the point in the sky where its orbit crosses the ecliptic from south to north) is moving westward around the ecliptic once in 18.61 years (6,798 days). This drift carries ...

The two moons swap places around 10:45 P.M. EST ... Sunrise: 7:01 A.M. Sunset: 5:28 P.M. Moonrise: 1:17 P.M. Moonset: 4:31 A.M. Mercury reaches superior conjunction at 7 A.M. EST, meeting with the Sun ...

We have the full Snow Moon to look forward to in the week ahead. And thanks to fortuitous timing it will look equally "full" to the unaided eye two nights in a row, on Feb. 11 and 12. That's because ...

The moon makes for an excellent guide to see Mars in the night sky tonight. As the sun sets this evening (Feb. 9), the moon ...

Lastly, this weekend of the March new moon (and the preceding weekend) are the two best weekends of the year ... 27th moves through a busy part of the sky: it has a series of close visual ...

Two planets stand side by side as the evening twilight continues to delight and colorful stars shine in the sky this week.

Castor and Pollux, the two stars for whom the constellation is named, will shine just to the left of the pair. Want to see the moon or Mars up close in the night sky? The Celestron NexStar 4SE is ...