Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll ...

Mercury hovers above the horizon near a four-percent-illuminated Moon, whose darkened face may be lit by earthshine.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Four prominent celestial objects — the moon, a bright planet and two bright stars — will come together to form a "celestial ...

The globular cluster Messier 22 (M22) reaches its highest point in the sky around midnight local time, specifically for ...

The best telescopes for seeing planets will let you capture Saturn and Neptune in the same view. Watch out for Prime Day, which is your chance to save big on deep space observation.

Television personalities going in search of enlightenment is a longstanding sub-genre, but Amol Rajan’s pilgrimage to the Ganges for the sprawling Hindu festival of Kumbh Mela brings something ...

See the moon, Mars and Regulus together in the western sky after sunset on Saturday, followed by a close conjunction between the moon and Mars on Sunday.