Part 5/8:
Observing Time Today: Satellite Technology and Cosmic Phenomena
Even in our contemporary universe, time dilation remains a salient factor in everyday technology. Satellites orbiting the Earth experience time faster than those of us on the surface, necessitating adjustments in GPS technology to maintain accuracy. Moreover, astronomers investigating distant galaxies witness these cosmic entities as they were billions of years ago, revealing how both light and time have stretched in transit.
The redshift phenomenon illustrates this; as light travels vast distances through the expanding universe, it becomes 'stretched,' echoing an earlier time when cosmic objects seemed to tick more slowly than those of today.