The sad story of travelling the speed of light

The video explores the concept of time dilation, both due to high speeds and gravitational fields. It begins with an introduction to black holes and fast spaceships, then explains how time dilation occurs when traveling at or near the speed of light. The video discusses the energy requirements and aging effects of such travel. Finally, it covers gravitational time dilation, using black holes as an example, and references the movie Interstellar.

Explain the concept of time dilation as it relates to a moving clock compared to a stationary observer.

What happens to time as you approach the speed of light according to Einstein's theory?

What are the implications of time dilation for astronauts returning from a journey at near light speed?

How does gravitational time dilation differ from time dilation due to speed?

Describe the effects of being near a black hole on time as observed from a distance.