
They Built the Quietest Place on Earth to Find Dark Matter
They Built the Quietest Place on Earth to Find Dark Matter One event in 220 days. That is what the search for dark matter looks like right now. In this episode I talk with Rick Gaitskell, professor of physics at Brown University and a leader on the LZ dark matter experiment, about what it takes to build a detector that can see almost nothing at all: seven tonnes of liquid xenon, a mile of rock in an old gold mine, and shielding so careful that the radon seeping out of ordinary concrete counts as a serious enemy. We get into why the field spent decades hunting the WIMP, what happens to a 3.4 sigma result when you look at it honestly, and why a single event, however beautiful, cannot tell you what you want it to tell you. We also talk about the human side of a project like this. The grad student who waited nine years for data. The physicist who walked away from investment banking. The uncomfortable fact that something like ninety-five percent of research does not work out, and what keeps people going anyway. And the line that sits under all of it: we only get one damn universe, and nature does not care whether your theory is beautiful. Chapters 00:00 One event in 220 days 06:00 Why they named it a WIMP 13:00 Ninety-five percent of research fails 20:00 He left investment banking for this 23:00 You are less than five percent of the universe 30:00 The fifty-year-old idea nobody can kill 45:00 The grad student who waited nine years 58:00 A gold mine and the quietest place on Earth 1:06:00 The radon in your basement is the enemy 1:21:00 The assumption that was hiding the signal 1:32:00 The event, and why they will not call it blinded 1:40:00 How 3.4 sigma becomes 2.6 1:49:00 The fog nobody can scrub 1:56:00 The dark matter we detected in 1956 My books Losing the Nobel Prize (memoir) Think Like a Nobel Prize Winner Focus Like a Nobel Prize Winner Galileo's Dialogue (first-ever audiobook) Socials Twitter/X: https://x.com/BrianKeating Substack: https://briankeating.substack.com Blog: https://briankeating.com/blog Audio-only: https://briankeating.com/podcast #intotheimpossible #briankeating #RickGaitskell #darkmatter #physics #AI #emergence #podcast Learn more about your ad choices. Visit megaphone.fm/adchoices

















