- Author: Sophus Michaëlis?Sophus MichaelisAuthor Record # 259579
- Legal Name: Michaëlis, Sophus August Berthel?Michaelis, Sophus August Berthel
- Birthplace: Odense, Funen, Denmark
- Birthdate: 14 May 1865
- Deathdate: 28 January 1932
- Language: Danish
- Webpages: IMDB, Wikipedia-DA
- Author Tags: first Mars voyage (1)