https://www.spaceanswers.com/solar-system/why-is-mars-red/ There seems to be two possible answers to this question. One is that Uranus seems to have been knocked on its side, possibly by a giant impact long ago, which has caused the heat from within its core to spill out into space. Alternatively, some astronomers point the finger at the ice giant’s incredibly energetic atmosphere during the planet’s equinox where it is most lively. It is here that scientists believe that the stirred atmosphere could be oozing heathttps://www.spaceanswers.com/solar-system/why-is-uranus-colder-than-neptune/

There seems to be two possible answers to this question. One is that Uranus seems to have been knocked on its side, possibly by a giant impact long ago, which has caused the heat from within its core to spill out into space. Alternatively, some astronomers point the finger at the ice giant’s incredibly energetic atmosphere during the planet’s equinox where it is most lively. It is here that scientists believe that the stirred atmosphere could be oozing heat.