ABL Space Systems announced some changes to RS1, Blue Origin broke ground in Huntsville and signed a new customer, and SpaceX has been making steady progress on Starship.

This episode of Main Engine Cut Off is brought to you by 35 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, Frank, and six anonymous—and 218 other supporters on Patreon.

We cover a lot of ground in this round of questions, nearly all focused on the future—ISS crew scheduling, ISS facilities, ISRO human spaceflight, science missions, and launch vehicles.

This episode of Main Engine Cut Off is brought to you by 35 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, Frank, and six anonymous—and 221 other supporters on Patreon.

I wanted to spend some time breaking down a few news items from last week that may be leading indicators of trends for 2019: layoffs at Stratolaunch, Tethers Unlimited, and SpaceX, and Relativity signed a lease for Launch Complex 16 at Cape Canaveral.

This episode of Main Engine Cut Off is brought to you by 35 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, Frank, and six anonymous—and 216 other supporters on Patreon.

Chris Gebhardt of NASASpaceflight joins me to talk all things SpaceX: Starship and its upcoming hopper tests, DM-1 and the government shutdown, and more.

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 213 other supporters on Patreon.

This month I tackle questions on future space architectures, companies working in space right now, and finish with a 2018 Top 10 ranking.

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 208 other supporters on Patreon.

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.

Jake Robins of WeMartians joins me to talk InSight, Mars EDL, and Mars 2020.

This episode of Main Engine Cut Off is brought to you by 33 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, and six anonymous—and 203 other supporters on Patreon.

NASA announced the nine companies that will be competing for Commercial Lunar Payload Services missions. I share some thoughts on the program overall, and discuss what we know about each company.

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, and seven anonymous—and 200 other supporters on Patreon.

This month for Q&A, we try to figure out what the hell is up with DM-1, hit a few questions about launch, and talk through a few space development topics.

This episode of Main Engine Cut Off is brought to you by 33 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, and seven anonymous—and 201 other supporters on Patreon.

As I was recording yesterday’s show about Starlink, SpaceX filed an application with the FCC for some changes to the Starlink plan. I read through the report and it confirms some of what I talked about yesterday, so thought it was worth an update.

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, and eight anonymous—and 195 other supporters on Patreon.