and Mercury fluctuates With an average temperature of about -224°C (-371°F), Uranus takes the top spot as the coldest planet in the solar system Following closely behind is Neptune, with an ...

They are known as the Ice Giants. Uranus is the coldest planet in the Solar System. Unlike the other planets, Uranus spins on its side. Neptune is the furthest planet from the Sun, thirty times ...

Those eternally dark areas are some of the coldest places in the solar system, despite the fact that Mercury is the closest planet to the sun. Previous observations suggested that these permanent ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Later observations revealed the planet to be a strange, icy world. Its atmosphere is the coldest of any planet in our solar system, and contains clouds of methane, hydrogen sulphide and ammonia. It is ...