⭐⚛️1️⃣

#stellar hydrogen #nuclear fusion #universe abundance #star fuel #most abundant element #element synthesis

🌫️➡️🔥⭐

#interstellar medium #gas cloud #nuclear fusion #stellar core ignition #hydrogen burning #star fuel

☀️⛽️

#sun fuel #star fuel #stellar fusion fuel #nuclear fusion #energy source #protium cycle

H₂☁️🌌

#molecular cloud #hydrogen cloud #h2 #interstellar gas #star fuel