Very goid introduction

Good

Good

This is pretty good. I Like astronomy but still I'm curious on how exactly time dilation happens, why should time slow down than time at another location when in different speed, like how. what's science behind it?

Nice But you should improve the quality of teaching more.

Excellent lecturer

Start from beginner to advance really Great

Great course but the thing that I mostly expected was a really deep explanation of how gravitational time dilation occurs. I watched many YT videos and tried to understand but it's really hard to understand. The course would be much better if that was also included in the content. I would love to donate but since I'm a college student I don't have resources to donate.

Wonderful explination

verygood