1 Thorium fuels can breed fissile uranium-233 to be used in various kinds of nuclear reactors. 2  Molten salt reactors are well suited to thorium fuel, as normal fuel fabrication is avoided.
Since Pluto has a much higher axial tilt of roughly 119.5 degrees, it has much larger arctic and antarctic circles, each stretching from roughly 29.5 degrees latitude to their respective poles. This means that at the peak of Plutoâs summer the area receiving the most direct sunlight is actually in the arctic circle.
At a whopping 3.6 billion miles from the sun, Pluto is one of the coldest large bodies in the solar system. The tiny planet experiences a wide range of cold temperatures due to its elliptical orbit, fluctuating between -375 and -400 degrees Fahrenheit. However, it lost its title of âColdest Planetâ when it was reclassified as a dwarf planet in 2006.