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
A Beautiful Planet how you use those resources. It reminds us that we have to be better stewards of what we have, and be better crew members of Spaceship Earth." This portrayal of our planet as a fragile, life sustaining spacecraft is introduced in the very first scene. The film begins with a light-years-long, computer-generated trip through swarms of stars in the Milky Way; the compressed trip ends by focusing on the Solar System. Even though our planetary system seems unremarkable, it is in fact "the only place we know, in all the universe, to harbor life." In the film, Jennifer Lawrence's narration