April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

In a close-up of the Rosette Nebula — a stellar nursery 5,200 light-years away — dark clouds of gas and dust are seen being carved by radiation from massive stars. A young star at the upper right is ...

Spoiler warning: Below there will be information about today's New York Times Strands puzzle.

A rare alignment of planets and our moon will produce a celestial old-school emoticon in the pre-dawn eastern sky on April 25 ...

The pre-dawn sky on April 25 will see a conjunction of Venus, Saturn and a waning crescent moon, which will resemble a ...

For International Dark Sky Week, learn about the health benefits of a night sky unobstructed by artificial light.