This July, skywatchers across Southern California are in for a remarkable sight as the crescent Moon and Mars converge in a ...

Stargazers in the U.S. will find the slender form of the crescent moon roughly 20 degrees above the western horizon right at sunset on Saturday. The following hour will see Mars and the bright star ...

The moon, Saturn and Neptune will rise a little before midnight for those in the U.S. Heads up stargazers! The moon will rise ...

Mercury is notoriously difficult to see from Earth, thanks to its proximity to the Sun. But on July 4, Mercury reaches its ...

As many as 100 "shooting stars" per hour can be visible, but a bright moon on the peak of the Perseids on Aug. 12 and 13 ...

A waning crescent Moon will pass close to Jupiter, Uranus, Mars and Venus, occulting Mars and Uranus. As the night sky darkens the Milky Way will become more easily visible.

This picture taken in Zagreb, Croatia on December 1, 2008, shows a slender crescent moon, just 15-percent illuminated, as it appears in very close proximity to the two brightest planets in our sky ...

Look to the east before sunrise on June 22 to catch the delicate form of the crescent moon shining with Venus alongside the Pleiades star cluster.

Now almost 5% lit, the crescent moon—although not as slim as on Monday night—will be visible for a short period after sunset. This time, however, it will be around 17° above the horizon.

If, in fact, you do look for the crescent moon on Oct. 30 you won't see it because it will be at new phase and hence too near to the sun to be seen.

The variables in crescent moon sightings aren’t the only things in play. “There is no central authority for Muslims, and there are some pretty basic divisions between Muslims, like in ...