Exploration of the Moon invention of the telescope, an increasing number of people began to recognise the Moon as a sphere, though many believed that it was "perfectly smooth". In 1609, Galileo Galilei drew one of the first telescopic drawings of the Moon in his book and noted that it was not smooth but had mountains and craters. Later in the 17th century, Giovanni Battista Riccioli and Francesco Maria Grimaldi drew a map of the Moon and gave many craters the names they still have today. On maps, the dark parts of the Moon's surface were called "maria" (singular "mare") or seas, and the
First on the Moon that in this case, Soviet cosmonauts were first. The movie follows the selection and training of a small group of cosmonauts. The one who shines above the others (similar to the clear front-runners in the early historical Soviet space program) is Captain Ivan Sergeyevich Kharlamov (possibly a reference to the real-life cosmonaut Valentin Varlamov). He is helped into a space suit and loaded into the capsule, and the rocket lifts off for the Moon—but contact with it is soon lost. Most of the remainder of the film seems to follow the search for information about what happened next, as the