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2021-11-10: What If Our Understanding of Gravity Is Wrong?
- 00:42: ... the gravity of visible matter is also way too weak to hold galaxy clusters together, or to bend the ...
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2021-01-26: Is Dark Matter Made of Particles?
- 03:58: These tell us something really important: dark matter is far more spread out - more diffuse - than almost all of the visible matter.
- 04:25: But no - dark matter seems to stay puffed up in gigantic halos surrounding the much more concentrated clumps of visible matter.
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2019-03-20: Is Dark Energy Getting Stronger?
- 02:22: Those same textbooks talk about dark matter – an invisible stuff whose gravitational influence overwhelms all types of visible matter combined.
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2019-01-09: Are Dark Matter And Dark Energy The Same?
- 01:23: Based on the gravity from visible matter alone they shouldn’t be able to hold themselves together.
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2018-03-28: The Andromeda-Milky Way Collision
- 10:06: ... whereby the gravitational response of the universe doesn't match the visible matter given our understanding of that matter and/or the laws of ...
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