Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle.
Neptune's atmosphere, like Jupiter's and Saturn's, is composed primarily of hydrogen and helium, along with traces of hydrocarbons and possibly nitrogen; it contains a higher proportion of ices such as water, ammonia, and methane.
Beneath the clouds is a mantle of ices and gases and a small rocky core. Neptune's core contains more rock and metal than the cores of other gas giant planets. The planet has a magnetic field, which is tilted more than 50Â° to the rotation axis.