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PBS Space Time
What If Our Understanding of Gravity Is Wrong?
Season 7
Episode 35
What if there is no such thing as dark matter? What if our understanding of gravity is just wrong? New work is taking another shot at that Einstein guy. Let’s see if we’ve finally scored a hit with Modified Newtonian Dynamics aka MOND.
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19:25
What if gravity isn’t weirdly quantum at all, but rather … just a bit messy?
17:02
Have we reached the end of the line of discoverable elements?
15:32
Can we change the color of a black hole?
18:26
Learn about Nobel laureate Roger Penrose's idea of how consciousness is caused by quantum processes.
16:28
Faster than light travel may produce gravitational waves that we could see here on Earth.
20:07
All particles belong to two large groups: fermions and bosons.
16:11
Just how much stronger is this year’s solar activity going to get?
17:25
So you’ve decided to jump into a black hole...
12:51
We only recently figured out where cosmic rays are coming from.
13:28
Black hole complementarity may force us to rethink what it means to say that it exists.
20:15
To travel the stars without faster than light travel we’re going to need a generation ship.
16:19
Today we are jumping into a black hole. Again.