13 June

According to a calendar aboard the SS Bernice, 13 June 1926 was a Thursday. (TV: Carnival of Monsters)

On 13 June 1947, a grey alien ship was forced to crash-land in New Mexico, close to Roswell. (TV: Dreamland)

In 1983, Pioneer 10 became the first man-made object to leave the central solar system when it flew past the orbit of Neptune. (PROSE: Time Traveller's Diary)