Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.

It probably spent nearly all of the past 4.5 billion years in a deep freeze beyond Neptune, inside the comet Wild 2 (pronounced VILT-two). Decades ago Wild 2 somehow got nudged into an orbit that ...

This allowed the team to simulate the extreme conditions inside Uranus and Neptune with greater accuracy. The key to their breakthrough came when they observed that, under these conditions ...

Neptune, for example ... of CO ice will react with the hydrogen to form additional water, the carbon inside refractory ...

NASA has found something on Uranus and Neptune. The ice giants of the solar system have long been enigmas for science.

A planet’s opposition occurs when Earth passes between it and the Sun. As a consequence of that geometry, Neptune’s disk will appear to be 100% illuminated as seen from Earth. It will be 180º ...