In August, astronomers can observe three prominent star clusters: Hercules, Pleiades, and Hyades. These clusters, comprising ...

Star clusters are groups of stars that formed together and remain bound by their mutual gravity. They mainly come in two ...

The bright stars Castor and Pollux will be positioned to the left of the moon in the early morning hours of Aug. 19. Mercury, meanwhile, will be visible close to the horizon, but will swiftly become ...

The planet parade is best seen in the east in the hour before dawn. A good view of the horizon will be needed, especially to spot Mercury. Vaughan says Mercury will rise around 5 a.m. and will be most ...