Question: User: Scene 6: Doppler Shift in Astronomy (Redshift & Blueshift) Visual Prompt for AI Video Generator: Prompt: Deep space 3D cinematic animation[cite: 14]. A distant galaxy moves away from Earth[cite: 14]. Visible hydrogen spectral emission absorption lines shift toward the red end of the optical spectrum (Redshift)[cite: 14]. Equation overlay displays: Δλ / λ ≈ v / c[cite: 14]. A second galaxy moving toward Earth shows spectral lines shifting toward blue (Blueshift)[cite: 14]. The expanding universe graphic is highlighted with glowing galaxy clusters[cite: 14]. English Voiceover & Text: Voiceover: "The Doppler effect applies to light too[cite: 14]! When distant galaxies recede from us, their spectral lines shift to longer wavelengths—known as Redshift[cite: 14]. This spectral shift provides key evidence that our universe is expanding[cite: 14]!"