This month, I take on questions about BE-4 and Vulcan, small launch, BFR, and human spaceflight.

This episode of Main Engine Cut Off is brought to you by 36 executive producers—Kris, Pat, Matt, Jorge, Brad, Ryan, Jamison, Nadim, Peter, Donald, Lee, Jasper, Chris, Warren, Bob, Russell, John, Moritz, Tyler, Joel, Jan, David, Grant, Barbara, Mike, David, Mints, Joonas, and eight anonymous—and 187 other supporters on Patreon.