A Brief History of the Speed of Light, NOVA

From Galileo to today, how physicists have measured and modified the speed at which light travels.

Speed of light - Wikipedia

IM-1 Makes History by Igniting Cryogenic Engine in Deep Space

Supernova - Wikipedia

Speed of light - Wikipedia

Can explosions move faster than the speed of light?

光速影片－菲左如何使用齒輪裝置測量光速？│科學史第二季- LIS情境

Light travels at a constant 186,000 miles per second. Moving at

Surprising Faster-Than-Light Discovery: How It Works (Infographic

A Brief History of Light

Our expanding universe: Age, history & other facts

Breakthrough Starshot: A voyage to the stars within our lifetimes