Why Light Speed Still Wouldn't Be Fast Enough for Humans
Light moves at six hundred and seventy million miles per hour. The fastest thing in existence. Yet even at that speed, you would need more than four years to reach the nearest star. Two hundred thousand years to cross our galaxy. And forty-six billion years just to touch the edge of what we can see. Tonight we travel to a star we can never reach, a galaxy that fled before we were born, and a horizon swallowing one hundred and sixty billion stars every single year.
#space #physics #cosmos
Sources: NASA Science - Our Milky Way Galaxy https://science.nasa.gov/universe/exo... Wikipedia - Observable Universe https://en.wikipedia.org/wiki/Observa... Wikipedia - Interstellar Travel https://en.wikipedia.org/wiki/Interst... Popular Science - Human Body at Lightspeed https://www.popsci.com/science/lights... Britannica - Observable Universe https://www.britannica.com/topic/obse... http://Space.com - Milky Way Galaxy Size https://www.space.com/41047-milky-way... NASA - Imagine the Universe Milky Way https://imagine.gsfc.nasa.gov/feature...
#space #astronomy #physics #universe #cosmos #science #stars #galaxy #lightspeed #relativity