Astronaut Donald Pettit made his first journey to space in 2002. During his four missions aboard the International Space Station, he captured images of every major city on the planet and observed the transformation of Earth's nighttime appearance as sodium vapor lights were gradually replaced with LED lights. The once warm yellow glow of traditional gas lamps has transitioned to a cooler white-blue hue. Many viewers have expressed their nostalgia for the comforting "warm" ambiance these older lights provided in urban landscapes. Which lighting do you prefer? ❤️ — The old one 🔥 — The new one
Informational material. 18+.
