Fictional planets of the Solar System 40 Eridani A. Counter-Earth was a hypothetical planet sharing an orbit with Earth, but on the opposite side of the Sun (hence Earth and Counter-Earth would always be invisible to each other). The idea of a counter-Earth has never been a serious scientific hypothesis in modern times. Phaëton is a name given to a supposed planet existing in the past between the orbits of Mars and Jupiter, which no longer exists, having become the Solar System's asteroid belt. Proposed not long after the discovery of multiple asteroids at the beginning of the 19th century, the idea that the asteroids were
Solar Jetman or anti-clockwise direction. The pod is subject to inertia but not drag physics depending on the level of gravity of the set planet. The constant pull of gravity changes every level, which makes stable flight challenging and manoeuvring the pod more difficult as the levels progress. "Solar Jetman" has twelve planets and one hidden planet, each with its own gravity and system of enemy-infested caverns. The goal is to navigate these caverns with small jetpods launched from an immobile mothership, on each planet bringing back a piece of the Golden Warpship and enough fuel to journey to the next one.