I’m Anthony Colangelo.

I write frequently at Main Engine Cut Off and, occasionally, right here.

Formerly: A List Apart and Cognition.

Thanks to September Patrons

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Very special thanks to the 315 of you out there supporting Main Engine Cut Off on Patreon for the month of September. MECO is entirely listener- and reader-supported, so your support keeps this blog and podcast going, growing, and improving, and most importantly, it keeps it independent.

Juno Executes Long Burn to Avoid Fatal Eclipse

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Sounds like the team didn’t predict such a long eclipse before launch. I wonder how much that’s tied to the fact that Juno is in a 53-day orbit rather than the intended 14-day orbit, due to the propulsion failure earlier in the mission. Nice flying by the Juno team.

Relativity, Momentus Announce Launch Agreement

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Momentus is certainly lining up launches, but I’d love to hear a bit about their customers. On the Relativity side, they’ve got quite a nice little backlog growing, but very few of their launch contracts have much in the way of concrete details.

More Starlink Tweaks

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Any changes that get SpaceX closer to service are great. Speed to at least some level of service is a huge priority for a project as big as Starlink.

Thanks to August Patrons

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Very special thanks to the 306 of you out there supporting Main Engine Cut Off on Patreon for the month of August. MECO is entirely listener- and reader-supported, so your support keeps this blog and podcast going, growing, and improving, and most importantly, it keeps it independent.

Astrobotic to Fly on First Vulcan Flight

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I could pretty much copy and paste my thoughts from last week about Dream Chaser flying on Vulcan: not surprising news since we had expected Atlas V, and I wonder what will happen if Vulcan doesn’t get to be a part of the next round of Air Force contracts.

Orbital Services Program-4 RFP Released

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This is a big deal for the Air Force, with a lot of missions up for grabs for launch vehicles that can send 180 kilograms or more to orbit. It’s not the huge payloads like NSSL flies, but 20 missions for the most vibrant sector of the launch market is just as interesting to me.