To test the theory, he hopes for high-pressure laboratory experiments replicating the conditions inside these planets. "If you ask my colleagues, 'What do you think explains the fields of Uranus and ...

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

On Neptune far out in the solar system it’s a different story—but what happens on the ice giant planet nevertheless appears to be inextricably linked to the same solar cycle. Having looked at ...

Our ideas of the colours of the planets Neptune and Uranus have been wrong, research led by UK astronomers reveals. Images from a space mission in the 1980s showed Neptune to be a rich blue and ...