Auf zwei Planeten

"Auf zwei Planeten" by Kurd Laßwitz is a science fiction novel that follows the journey of scientists Saltner, Grunthe, and Thorm as they set out to explore the North Pole in a balloon. However, their expedition takes an unexpected turn when they discover a Martian station at the pole. The Martians, known as the Nume, are advanced beings who are studying Earth and its inhabitants, called the Bate. After a balloon accident, Saltner and Grunthe are rescued by the Nume, but Thorm's fate remains uncertain. The two scientists are warmly welcomed into the Martian station and learn about the Nume's superior technology and human-like characteristics. In an effort to establish better understanding, Saltner and Grunthe are taken to Mars. Meanwhile, a Nume airship encounters an English warship and is attacked, leading the Nume to decide to conquer Earth and its primitive inhabitants. This captivating novel explores the interplay between Earth and Mars