When You Look at the Stars, You’re Not Seeing What You Think | Brian Greene

When you look up at the night sky, what are you really seeing? In this video, physicist Brian Greene explores one of the most mind-bending ideas in modern physics: if, from light’s own point of view, there is no passage of time and no journey through space, what does it mean to “see” a star that is trillions of miles away? Discover how light, time and distance are connected through Einstein’s theory of relativity, and why the stars you see are glimpses of the past rather than the present. This talk turns a simple moment of stargazing into a deeper look at the nature of space, time and reality itself. In this video you will learn: Why light behaves so strangely in relativity What it really means to look back in time when you gaze at the stars How space and time connect to what we observe Why the night sky is a record of the cosmic past Watch to the end for a fresh way to see the universe above you. If you enjoyed this video, please like, share and subscribe for more fascinating conversations on physics, space and the cosmos. Hashtags: #briangreene #physics #light #stars #universe #spacetime #relativity #einstein #cosmos #astronomy #science #space #astrophysics #theoreticalphysics #education Tags: Brian Greene, Brian Greene physics, light never moves, speed of light, what are you seeing when you look at the stars, looking at stars, light and time, time and space, special relativity, theory of relativity, Einstein relativity, spacetime, nature of light, photons, does light experience time, stargazing, night sky, looking back in time, starlight, distant stars, cosmology, astrophysics, theoretical physics, physics explained, science explained, space and time, universe, cosmos, string theory, educational science, science education Disclaimer: This video is for educational and informational purposes only. All views and scientific explanations presented are those of the speaker and are intended to inspire curiosity about science. All rights to the original content belong to their respective owners. This channel does not claim ownership of any original material. If you are a copyright owner and have any concerns, please contact us and we will address the matter promptly.