Which innovative features enable the Astronef to travel both in atmosphere and in space?

The Astronef possesses several innovative features that enable its travel in both atmosphere and space. It utilizes a discovered 'R. Force,' which is a repulsive force derived from the secret of gravitation, allowing it to overcome or counteract the attractive force of planets for space travel^[1][1]. This force can make the vessel weigh nothing, rise, or be propelled rapidly through space^[1].

For atmospheric travel, the Astronef employs propellers and can achieve speeds of approximately 150 miles per hour^[1]. Additionally, it generates its own internal atmosphere, which is crucial for sustaining life in the thin, cold air of high altitudes or the vacuum of space^[1].