What’s in your light cone?

In General Relativity, there is famously a cosmic speed limit of c, the speed of light in a vacuum. Nothing we are familiar with can exceed this limit, imposing a limit on the speed of causality – information about change travels at the speed of light. With this in mind, a website has been created to map the objects within a person’s ‘light cone’. A light cone represents the distance from an object light could travel with time. Simply put, you type in your birthdate and it will display objects light could have travelled to from the Sun in the time you have been on this planet. Click here to find what lies within your own past light cone.


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