Time Facts

Due to general relativity, time passes very slightly faster for your head than your feet because your head is further from Earth's gravitational center. Over a 79-year lifetime, your head ages about 90 nanoseconds more than your feet.

The Great Pyramid was built around 2560 BC. Cleopatra lived around 30 BC. The Moon landing was 1969 AD. Cleopatra existed closer in time to us watching Netflix than to the construction of the pyramids in her own backyard.

Your brain runs on an 80-millisecond delay. Everything you experience has already happened. You have never perceived the present moment.

The light from the Andromeda galaxy hitting your eye right now left before humans existed. You are seeing 2.5 million years into the past.

A day on Venus is longer than its year. It rotates so slowly that the Sun rises in the west and sets in the east.