Bright patches of light, known as sun dogs, appear when sunlight bends through hexagonal ice crystals in high-altitude clouds ...

Discover the brightest planets in the December 2025 night sky, including Jupiter and Mercury, and know the best times to see ...

Mercury currently appears as a bright "evening star" in the southwestern sky at sunset. Mercury will reach its greatest eastern elongation on Oct. 29, marking one of the best evenings to see the ...

While forecasts called for cloudy skies on Friday morning in south-central Pennsylvania during a total lunar eclipse, clear skies prevailed, providing a spectacular astronomical show to those who ...

The final hurdle for Tsuchinshan-ATLAS to surmount will come on the afternoon of Sept. 27, when it arrives at perihelion — the closest point in its orbit to the sun. When you purchase through links on ...