Quote by Bill Nye
When we see the shadow on our images, are we seeing the time 11 minutes ago on Mars? Or are we seeing the time on Mars as observed from Earth now? It's like time travel problems in science fiction. When is now when was then?
Summary
This quote raises a question about the perception of time and the relativity of observation. The reference to shadows on images alludes to the delay in receiving visual information from distant objects like Mars. It questions whether the shadow we see represents the present moment on Earth or a past moment when the shadow was cast on Mars. The comparison to time travel in science fiction highlights the complexity of determining the precise "now" moment and invites contemplation on the nature of time itself.
Topics
Science
By Bill Nye