Did you know that the faintest visible stars in our night sky are actually emitting more light than a 100-watt

Did you know that the faintest visible stars in our night sky are actually emitting more light than a 100-watt bulb — yet from their distance, all that energy arrives as just a few photons per second in your eye? Because the universe is expanding, every distant galaxy is drifting away from us, and the farther it is, the faster it recedes — meaning some galaxies we see today are already so far that their light will never reach us in the future. In fact, the cosmic horizon is shrinking: about 97% of the observable universe's galaxies are now unreachable to us, even at the speed of light, forever.

Feed · 25.08.2026

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