# Finite Light — Why We Always Look Back In Time

Light’s finite speed make all gazing a ride in a time machine. Only a photon truly lives in the moment.

The post Finite Light — Why We Always Look Back In Time appeared first on Universe Today.

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Light Speed

# Finite Light — Why We Always Look Back In Time

# How Can Space Travel Faster Than The Speed Of Light?

Light’s finite speed make all gazing a ride in a time machine. Only a photon truly lives in the moment.

The post Finite Light — Why We Always Look Back In Time appeared first on Universe Today.

Cosmologists are intellectual time travelers. Looking back over billions of years, these scientists are able to trace the evolution of our Universe in astonishing detail. 13.8 billion years ago, the Big Bang occurred. Fractions of a second later, the fledgling Universe expanded exponentially during an incredibly brief period of time called inflation. Over the ensuing eons, […]