I’m Anthony Colangelo.

Jon Goff with some thoughts on how the second generation megaconstellations will be impacted by the presence of SpaceX as both a constellation operator and launch provider.

An interesting report by /u/Colege_Grad/ over on the Blue Origin subreddit points to the fact that Blue Origin will have its next New Shepard vehicles in Texas by May.

With the launch of OA–7, I’ve been thinking about the interplay between Cygnus, Antares, Atlas V, and Orbital ATK’s Next-Generation Launch Vehicle.

Saying the end goal is to develop two launch vehicles doesn’t mean the Air Force is only giving out two contracts. They could—and probably should—award more than two contracts, so that they can still meet their goal even if one or more contenders fail for any reason.

Regardless of how you think our collective plans should be organized, we can all agree that we’d rather see something happen. Let’s be honest about where we’re headed, and get on with it.

I haven’t said much about NASA’s proposed Deep Space Gateway and Transport architecture yet, but I’ve been thinking about it a lot.

Downsizing, relocating to a lower-cost location, and doubling-down on just about the only politicians who have been working for them lately.

An extensive and informative article by Chris Gebhardt, for NASASpaceFlight, on the recent Commercial Crew update given to the NASA Advisory Council.

I’m excited to announce the launch of a brand new project: the Main Engine Cut Off Shop. This isn’t the typical “sell a t-shirt with your podcast logo on it” sort of project (though I do love me some podcast tees)—it’s an ever-growing collection of custom-designed products for space geeks like you and I.

Rob Meyerson, president of Blue Origin, talked a bit more about their Blue Moon concept at the Space Symposium this week.

Yesterday at the Space Symposium, Jeff Bezos had some interesting comments on Blue Origin’s plans.

Jeff Foust, for SpaceNews, on Blue Origin’s progress on BE-4 firings, and how ULA is managing the downselect for Vulcan engines.

Much cleaner structure—and a better name—for a solution I still don’t believe in much at all. Interestingly, the rebrand frees up the “Vulcan” name in the aerospace field, at a time when there have been rumors of a potential rebrand for ULA.

Seems like Orbital ATK’s PR editors removed the next sentence: “We’ll just need that money upfront, instead.”

Thanks to my patrons for the month of March. If you’re getting some value out of what I do here and want to send a little value back to help support Main Engine Cut Off, head over to Patreon and donate as little as $1 a month—every little bit helps.

It was just a matter of time. I guarantee you those in Le Gall’s camp will think of at least one more step, and we’ll hear about it right after SpaceX’s next step.

Matthew Bodner, for The Moscow Times, reports that 71 engines, mostly for the second and third stages of Proton, require complete overhauls.