This evening, the small constellation Lacerta sits just below cross-shaped Cygnus in the eastern sky after dark. The zig-zagging outline of the Lizard lies roughly 20° east (to the lower left early in ...

Mars and the crescent Moon hang together in the early-morning sky, straddling the border of Gemini and Taurus.

The Little Gem is a lovely blue-green planetary nebula that shines brightly in the southern sky near Sagittarius' Teapot ...

A total eclipse of the Sun coincides with the peak of the annual Perseid shower, plus Venus reaches dichotomy in the sky this ...

The Moon passes in front of the stars of the Pleiades, visible in the eastern U.S., while distant ice giant Uranus hangs ...

Mercury sits a few degrees due south of Pollux in Gemini early this morning, while Mars lies higher up along the ecliptic.

Rising shortly after sunset, July’s Full Moon, called the Buck Moon, dominates the sky tonight with its bright light.

Mercury reaches its greatest western elongation, Iapetus passes close to Saturn, and the Moon occults the Pleiades in the sky ...

Saturn’s two-toned moon Iapetus passes through superior conjunction, sitting just south of the ringed world this morning.

The waning Moon steps up to form a triangle in the early-morning sky with two distant planets: Saturn and Neptune.

There are big challenges associated with such a mission, from readying a craft quickly to finding the comet and sending data ...

SpaceX flies a classified NRO mission from Cape Canaveral, China launches back-to-back Long March rockets in a single day, ...