10 Interesting Facts About The Sun10 Interesting Facts About The SunNASA confirms: The Sun is a medium-sized yellow dwarf star — just one of over 100 billion stars in our galaxyThe Sun is made of 74% hydrogen and 24% helium. The rest is trace elements like oxygen and carbonNASA states the Sun’s photosphere (visible surface) reaches about 5,500°C, while its core blazes at over 15 million°CLight travels 93 million miles in just 8 minutes and 20 seconds to get from the Sun to youNASA monitors solar flares that can disturb satellites, GPS, and even power grids on EarthNASA discovered “sunquakes” — shockwaves that ripple across the Sun’s surface after solar flares, like seismic quakes on EarthIts immense gravity keeps Earth, planets, asteroids, and comets in orbit. It’s the anchor of our cosmic familyNASA tracks an 11-year cycle of sunspots and activity, shifting between solar maximum and solar minimum phasesThe Parker Solar Probe, launched in 2018, is the closest spacecraft to ever approach the Sun — flying into the coronaAccording to NASA, the Sun is about 4.6 billion years old and has enough fuel to last another 5 billion years