Animated Juno spacecraft image of atmospheric flow in Jupiter's Great Red Spot (GRS). The GRS is a large storm system that has existed for at least a few hundred years. It consists of cold clouds that rotate anticlockwise several kilometres above the surrounding cloud deck. Jupiter is the largest planet in the solar system. It has a diameter of around 140, 000 kilometres, more than ten times that of Earth. It is a gas giant and is mostly hydrogen and helium. Juno arrived at Jupiter in July 2016. Its mission is to orbit Jupiter over the following year, gathering information about the planet's atmosphere, magnetic field and gravitational field. Image taken by JunoCam at a distance of 9, 800 kilometres from Jupiter on 10th July 2017.