PBS Space Time

PBS Space Time - Season 2023 Episode 21 Do We Need a NEW Dark Matter Model?

2025-09-04 48 minutes.
10.00 1 votes

Season - Episode

2024 Season 2024 Jan 10, 2024
2023 Season 2023 Jan 11, 2023
2022 Season 2022 Jan 12, 2022
2021 Season 2021 Jan 12, 2021
2020 Season 2020 Jan 06, 2020
2019 Season 2019 Jan 09, 2019
2018 Season 2018 Jan 10, 2018
2017 Season 2017 Jan 04, 2017
2016 Season 2016 Jan 06, 2016
2015 Season 2015 Feb 11, 2015
1 Season 1 Feb 11, 2015
0 Season 0 Apr 10, 2017

Overview

We have no idea what dark matter is, other than it’s some source of gravity that is completely invisible but exerts way more pull that all of the regular matter. More than all of the stars, all of the gas, all of the black holes…unless dark matter is black holes, then black holes are most of everything. Dark matter constitutes 80% or so of the mass in the universe, which means even our Milky Way galaxy is mostly a vast ball of dark matter that happens to have attracted a relative sprinkling of baryons—atoms in the form of gas, which lit up as starry glitter spinning in the middle of this invisible gravitational well.

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Popularity 1.7149
Language English