When the luminosity of the outer planets was calculated, that of Neptune was found to be relatively high, indicating that Neptune is giving off more energy than it is receiving from the sun. The same phenomena is seen at Jupiter and Saturn.

There are several ways in which astronomical objects produce energy from inside. The first is thermonuclear fusion. This method of energy production is reserved for stars. Another method is by way of radioactive material within the ground. This method is at work in most terrestrial bodies.

For the giant planets the method which seems to be at work is the mere fact that energy is given off from when a planetary body is in the process of shrinking together, or collapsing on itself.

The fact that Neptune is still collapsing together indicates that the process of planet formation is still going on. This process is providing the heat from within which causes the unusual motions in the atmosphere.

Neptune has also been found to be a warm body in space. The energy that Neptune makes has been found to be very high.

There are several ways in which astronomical objects make energy from inside. The first is by thermonuclear fusion, the way a star makes energy. Another method is by radioactive material within the ground, the way a planet makes energy.

For the giant planets, the method which seems to be at work is the mere fact that energy is given off from when a planet is in the process of shrinking together, or collapsing on itself.

The fact that Neptune is still collapsing together indicates that the process of planet formation is still going on. This process is providing the heat from within which causes the unusual motions in the atmosphere.

Like Jupiter, Neptune also gives off a lot of heat.

There are several ways for a heavenly object to make energy from inside. The first is by fusion, the way the sun makes energy. Another way is with radioactive material deep within the ground, the way a planet makes energy.

For the giant planets, the way that works is the mere fact that energy is made when a planet is in the process of shrinking together.

The fact that Neptune is still shrinking together shows that the process of forming is still going on.