Jonathan McDowell joins me to talk about his recent paper proposing 80 kilometers, rather than 100, as a more appropriate boundary of the edge of space.

This episode of Main Engine Cut Off is brought to you by 34 executive producers—Kris, Pat, Matt, Jorge, Brad, Ryan, Jamison, Nadim, Peter, Donald, Lee, Jasper, Chris, Warren, Bob, Russell, John, Moritz, Joel, Jan, David, Grant, Mike, David, Mints, Joonas, Robb, Tim Dodd the Everyday Astronaut, and six anonymous—and 205 other supporters on Patreon.

T+105: Jonathan McDowell

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