The Search for Dark Matter, part I - Prof. Alan Duffy

It's a bit weird how astronomers still have yet to properly identify about 85% of the matter in the universe. The matter we can see, the atoms and particles and photons, is just 15% or so - the rest is Dark Matter, ghostly stuff that researchers like Alan Duffy know is there, they can see its effect on galaxies, and clusters of galaxies, and the cosmic microwave background ... they just don't know what it is yet. So Alan is leading one of the big experiments to try to nail down this elusive stuff once and for all.
----------------
Prof. Alan Duffy from Swinburne University, speaking to students at the 43rd Professor Harry Messel International Science School, ISS2023: solve for x - The University of Sydney, Australia, July 2023.
Alan's second dark matter lecture: • The Search for Dark Ma...
Check out the ISS2023 Playlist: • ISS2023: solve for x
For more about the ISS: sydney.edu.au/s...