The energy radiated by the Sun is of unimaginable magnitude. Every second, 627 million tonnes of hydrogen are burnt in the Sun’s core into helium—that element rightly called after the Greek word for the Sun. The Sun generates its energy by thermonuclear fusion in the core, where under enormous heat, four protons, the nuclei of hydrogen, come together to form a helium nucleus. Probably Earth and all planets originate from the same flat nebular disc that gave rise to the formation of the Sun. The grains were formed at very high temperatures in the neighbourhood of the native Sun. To maintain the sequence of the seasons as they are, it is important that the axis of Earth rotation angle with respect to the plane of its rotation around the Sun remains stable. The matrix stems from the dust out of which the Sun and its planets were originally formed—it is older than the solar system.