- Messier 18 or M18, also designated NGC 6613 and sometimes known as the Black Swan Cluster, is an open cluster of stars in the constellation Sagittarius. It was discovered by Charles Messier in 1764 and included in his list of comet-like objects. From the perspective of Earth, M18 is situated between the Omega Nebula (M17) and the Small Sagittarius Star Cloud (M24).
- Italo Calvino (Wikipedia)
Italo Calvino (/kælˈviːnoʊ/, also US: /kɑːlˈ-/, Italian: [ˈiːtalo kalˈviːno]; 15 October 1923 – 19 September 1985) was an Italian writer and journalist. His best known works include the Our Ancestors trilogy (1952–1959), the Cosmicomics collection of short stories (1965), and the novels Invisible Cities (1972) and If on a winter’s night a traveler (1979).
