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1 day ago · The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
1 day ago · Sun activity has calmed from high to moderate levels today, but filaments – great ropes of solar material and magnetic fields, arcing up from the visible surface of the sun – are active...
23 hours ago · The Sun is the star at the center of the solar system and is by far the largest object in it. It has a diameter of about 1.39 million kilometers and a mass of approximately 1.99 x 10^30 kilograms, accounting for about 99.86% of the total mass of the solar system.
3 days ago · In astronomy, Kepler's laws of planetary motion, published by Johannes Kepler between 1609 and 1619, describe the orbits of planets around the Sun. The laws modified the heliocentric theory of Nicolaus Copernicus, replacing its circular orbits and epicycles with elliptical trajectories, and explaining how planetary velocities vary.
3 days ago · Compare to the real sky! An online sky map to identify constellations and major stars and planets easy to see with the naked eye.
1 day ago · The fragrance has been slashed from its usual £32 price and is the cheapest around. 1. ... "The Sun", "Sun", "Sun Online" are registered trademarks or trade names of News Group Newspapers Limited.
5 days ago · According to the project's final report, combining those two technologies could allow a spacecraft to perform what is known as an Oberth maneuver around the sun. In this orbital mechanics...
