![Light Years =distance = the speed of light =300,000 km/s =the further you look into the distance, the further back in time you are looking = how far light. - ppt download Light Years =distance = the speed of light =300,000 km/s =the further you look into the distance, the further back in time you are looking = how far light. - ppt download](https://slideplayer.com/7610939/25/images/slide_1.jpg)
Light Years =distance = the speed of light =300,000 km/s =the further you look into the distance, the further back in time you are looking = how far light. - ppt download
The Schools' Observatory - We start our month of Astronomy In Numbers with a big one! The speed of light (symbol c) is 300,000 km/s...don't believe us? Have a go at measuring
![Is the speed of causality = Speed of Light + 75 km per megaparsec per second? | by George T. | Medium Is the speed of causality = Speed of Light + 75 km per megaparsec per second? | by George T. | Medium](https://miro.medium.com/v2/resize:fit:960/1*-lPlHeViHtumS4e1mfveDg.png)