The life, and death, on/of Earth, and of all solar system, depends primary of the sun. The beat of almost all cycles in the natural near-context comes from the sun's beat. The energy in our natural world comes from the sun's energy – and from Earth's core. The matter of solar system, their building blocks – the elements, come from the Big Bang, and from dead star/s. The Sun-Earth connection is vital; we live in our star atmosphere. The variations and changing processes of solar activity, known as the space weather, affects humans and our emergent spacefaring civilization. In a remarkable way, the Sun goes through a nearly 11-year cycles, measured by the number of observed sunspots on the solar surface. The solar cycle are numbered from they are tracked since 1755, when systematic recording of solar sunspots began. Currently there are two solar cycles active at once, the old Solar Cycle 24 and the Solar Cycle 25 that is coming to life.