Its mean diameter in miles is around 525 miles (844km). Astronomers are unsure of its shape as it is so small and far away, so it remains a dwarf planet candidate. If it turns out that it is...
A planet is defined as any celestial body which has enough matter to form itself into a sphere (or spheroid), but without enough mass to begin nuclear reactions. This definition has no relation to...
A planet is claimed to be a planet due to a couple of things about that body: - size - mass - regular revolution around a star - materials that make it up - permanency Recently Pluto was named a...
Pluto is the only "planet" that isn't a planet. Well it think that the IAU still have not anwererd the question WHAT MAKES A PLANET A PLANET is it a certain size or something And venus as swell coz...