The 2025 summer solstice takes place on June 20, heralding the onset of astronomical summer and the longest day of the year.

Since the solstice occurs so late at night Philly time, is the longest day the 20th or the 21st? The answer: Both. The ...

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

West Aussies may have noticed temperatures dropping and days darkening in the past few weeks as we head towards the winter ...