This gorgeous eight-hour exposure reveals the colors of stars as they make their way across the night sky, colors that can inform astronomers about the characteristics of each star. When you purchase ...

Professional and amateur astronomers post amazing photos of the sky. A colorful, star-filled Milky Way is often shown rising above a landscape, and photos from the Hubble Space Telescope reveal ...

Brilliant northern lights spread across the night sky while their colorful reflections shimmer gently on the calm lake below. The peaceful atmosphere and glowing horizon create a view that feels both ...

Tonight is "blue moon Eve" (see the May 31 entry for more details). Late tonight, look toward the southeast to see one of the sky's most striking color contrasts. The bright, nearly full moon will be ...