I’m Anthony Colangelo.

I used to write frequently, but now it’s just occasionally.

Formerly: A List Apart, Cognition, Main Engine Cut Off.

Dr. Marco Langbroek on ZUMA

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A fantastic, must-read post with photos, maps, and analysis of the ZUMA situation. Dr. Langbroek is just about the only person I’ll be following with regards to ZUMA.

ZUMA, USA 276, and ISS

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ZUMA has been wrapped up in the mystery surrounding USA 276 and the ISS since last November, when Marco Langbroek found that its launch window and trajectory lined up very closely to their orbits. After a few delays (with little insight into their causes, much like the launch of USA 276…), things seem to be lining up again.

Canaveral’s Polar Express

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This will only get really interesting when someone books a launch to use such a path, and any thoughts of consolidating all US launch infrastructure to a single location are nonsensical, but the possibility does enable some fun discussions for those working on Falcon Heavy and New Glenn, specifically.

Thanks to December Patrons

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Very special thanks to the 135 of you out there supporting Main Engine Cut Off on Patreon for the month of December, and for all of 2017. Your support keeps this blog and podcast going, and most importantly, it keeps it independent.