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.
The tilts of the planets. Most planets' rotation is to the east, as for the Earth. Some planets (Venus, Uranus and Pluto) rotate to the west if the North Pole is defined as the one 'on top' of the planet (above the plane of our orbit).