Is It Possible To Travel To The Past

In Einstein’s Theory of General Relativity, it is possible. But, there are some that argue that even though it’s permissible under strange conditions in relativity, the rest of physics may forbid it.

Science Rules! with Bill Nye · Are We Alone in the Universe? · at 39:47 · July 16th, 2019

On this episode

Why Should We Care About Where We Come From at 5:00
How Do We Know The Universe Is 13.8 Billion Years Old at 5:54
What Does Looking At The Galaxy Reveal To Us at 6:34
Can We Accurately Measure The Size Of The Universe at 8:37
Is There More Than One Universe at 9:57
Can You Have Multiple Infinite Universes at 14:04
Is There A Way To Tell If We Are Living In A Holographic Universe at 19:56
What Would Happen If The Universe Didn't Recycle Material at 25:20
From What We Can See, How Much Of It Makes Up The Universe at 27:43
What Is A Known Form Of Invisible Matter at 30:35
What Is String Theory at 31:40
What Does Every Particle In The Universe Have at 36:11
Is It Possible To Travel To The Past at 39:47
What Is One Of The Most Common Misconceptions About Space at 41:19
What Is One Thing We Should All Know About Space at 41:50