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Is the Sun Getting Brighter? - Newsweek "These data show us that the Sun is not getting brighter with time The brightness does follow the sunspot cycle, but the level of solar activity has been decreasing the last 35 years
Quantum Tunneling in Stars: The Hidden Reason Our Sun Shines Brighter . . . Modern calculations show that quantum tunneling increases the fusion rate in the Sun by approximately 20 orders of magnitude compared to what classical physics would predict - just enough to account for our star's observed energy output
Why the Sun Appears Brighter Than Other Stars The single greatest reason the Sun appears brighter than any other star is its comparative nearness to Earth The average distance from Earth to the Sun is approximately 8 3 light-minutes
Why our Suns brightness fluctuates - Max Planck Society In fact, it doesn't always shine with uniform brightness, but shows dimmings and brightenings Two phenomena alone are responsible for these fluctuations: the magnetic fields on the visible surface and gigantic plasma currents, bubbling up from the star's interior
Why Is The Sun So Bright? - Sciencing What makes the sun so bright is its power source: a process called nuclear fusion, which yields abundant energy The fusion reaction, along with the sun's enormous size, means it will continue to shine brightly billions of years into the future The sun consists primarily of hydrogen and helium gas