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 ...

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 ...

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.

Judge Orders Halt on Deportations of Venezuelans Under Wartime Law A federal judge blocked the Trump administration from invoking an obscure wartime law, called the Alien Enemies Act of 1798, to ...

The first publication of the catalog appeared in 1774 in the “Mémoires de l'Académie 1771” and included the objects M1 to M45. The second, expanded part appeared in 1783 in the Connaissance ...

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