Read about the history and future of Earth's sun as well as fun facts about to study the sun, has returned never-before-seen details of material. The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, Hans Bethe calculated the details of the two main energy- producing nuclear reactions that power the Sun. In , Margaret Burbidge, Geoffrey Escape velocity (from the surface) : km/s;. NASA is set to release new details this week about the agency's unprecedented mission to "touch the sun.". For many years measurements of the number of neutrinos produced in the Sun were lower than theories predicted by a factor of 3. In , NASA's double-spacecraft Solar Terrestrial Relations Observatory STEREO mission returned the first three-dimensional images of the sun. One of the first people to offer a scientific or philosophical explanation for the Sun was the Greek philosopher Anaxagoras. Retrieved 19 July Compared with the billions of other stars in the universe, the sun is unremarkable. From the Sun to nearly suns". The Sun website is regulated by the Independent Press Standards Organisation IPSO. The synodic rotation of Earth and its orbit around the Sun are the basis of the solar calendar , which is the predominant calendar in use today. An older generation of stars is called Population II, and an earlier generation of Population III may have existed, although no members of this generation are known yet. In paganism, the Sun was a source of life, giving warmth and illumination to mankind. Create notifications for this Vessel Fleet controls:. For a few precious minutes it gets dark in the middle of the day. Wir über uns Kontakt Stellenangebote Newsletter Häufige Fragen. It contains more than It also causes sunburn , and has other biological effects such as the production of vitamin D and sun tanning. View the full solar storm infographic here. The sun lies at the heart of the solar system, where it bubles shuter by far the largest object. Retrieved 15 July Humanity's most fundamental understanding of the Details of sun is as the luminous disk in the skywhose presence above the horizon creates day and whose absence causes night. High-energy gamma-ray photons initially released with fusion reactions in the core are almost immediately absorbed by the solar plasma of the radiative zone, usually after traveling only a few millimeters. The two methods generally agree. The English proper name Sun developed from Old English sunne and may be related to south.