Night sky night sky. Aircraft are also visible at night, distinguishable at a distance from other objects because their lights blink. Night sky The term night sky, usually associated with astronomy from Earth, refers to the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon. Natural light sources in a night sky include moonlight, starlight, and airglow, depending on location and timing. Aurorae light up the skies above the polar circles. Occasionally, a large coronal mass ejection from the Sun or simply
Northern Lights (novel) Northern Lights (novel) Northern Lights (known as The Golden Compass in North America and some other countries) is a young-adult fantasy novel by Philip Pullman, published by Scholastic UK in 1995. Set in a parallel universe, it features the journey of Lyra Belacqua to the Arctic in search of her missing friend, Roger Parslow, and her imprisoned uncle, Lord Asriel, who has been conducting experiments with a mysterious substance known as "Dust". "Northern Lights" is the first book of a trilogy, "His Dark Materials" (1995 to 2000). Alfred A. Knopf published the first US edition April 1996, entitled "The Golden