You know, after decades of pointing optics toward the sky, I consider myself a knowledgeable observer. But while researching ...

In the early evening on March 5, watch our satellite pass by a famous bright star cluster: the Pleiades (M45).

Read Showing a large portion of M66, this Hubble photo is a composite of images obtained at visible and infrared wavelengths.

Explore the wonders of the night sky with our guide to the best celestial sights you can observe with binoculars between ...

Scientists using NASA’s Pleiades supercomputer have discovered a spiral structure within the Oort Cloud, a distant shell of icy bodies at the edge of the solar system. The finding offers new insights ...

The Moon passes 0.4° south of the bright red giant Antares in Scorpius this morning at 4 A.M. EST. The pair is visible in the ...

Some were gaseous, star-forming regions, such as the Orion nebula, or M42 – the 42nd object in Messier’s catalog – while others were star clusters such as the Pleiades, or M45. A third ...