@astroathens: Why stars twinkle ✨ it’s Earth’s atmosphere bending their light on the way to your eyes 👀 . 🌏 As starlight travels through layers of air with different temperatures and densities, it gets refracted again and again. ⭐️ That constant shifting makes the star’s position and brightness appear to change. So the next time you see a star sparkle, you’re actually watching our atmosphere in action. 🌌 #Astronomy #spacefacts #ScienceExplained #LearnOnTikTok #scitok