Sky This Week is brought to you in part by Celestron. Friday, July 4Mercury reaches its greatest eastern elongation (26°) ...

Summer arrives for northern observers as the Moon visits Venus, Uranus, and Mercury. Plus: globular cluster M15, double star ...

Each month, a full moon lights up the night sky—but this July brings a special sight for stargazers. The full Buck Moon will ...

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

Pluto will reach its closest approach to Earth and align opposite the Sun on July 25, appearing slightly brighter (magnitude ...