Cyrano de Bergerac (1619-55) is today perhaps best known for his portrayal in fiction as the unfortunate owner of a protuberant nose. However, he published a story entitled "Voyage to the Moon" in which he describes how he was transported to the Moon by the action of sunlight on bottles of dew which he had attached to his body.
A little while afterwards he went one further and in "The History of the States and Empires of the Sun" he describes how he travelled to the Sun and found it to be an inhabited world.
These are clearly no more than amusing fairy tales but he does have a serious claim to fame in being the first writer to advocate the use of rockets for travelling in space.