Writer and livestream commentator at @NASASpaceflight. My opinions are my own and my own only, if you don't like them, look/go away. ES/EN He/Him 🏳️‍🌈⭐️

Seville, Spain
Joined October 2016
🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
En esta foto mucho de de dónde venimos y mucho de hacia dónde queremos ir. Pedro abrió el camino para los astronautas españoles, Chrsitina representa el brillante presente del espacio y Sara y yo tenemos la suerte y la responsabilidad de coger su testigo. Qué alegría compartir una noche así en los Premios Princesa de Asturias, acompañando a Christina mientras recogía su premio a la Concordia.
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
TPS on Ship 43 looks superb.
Starship Flight 16: Ship 43's going to Pad 2, likely for some catch tests with the chopsticks. nsf.live/starbase
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Starship Flight 16: Ship 43's going to Pad 2, likely for some catch tests with the chopsticks. nsf.live/starbase
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Rocket Lab Space Structures Complex Update 5 October 26, 2026 Middle River, Maryland Round 2!! More hardware has made its way to the lagoon for loading onto the barge! @NASASpaceflight – at Middle River, MD
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Why are people somehow forgetting today that Raptor 3 was originally announced as having 280t of thrust? Like, am I going crazy or what?
Raptor 3 (sea level variant) Thrust: 280tf Specific impulse: 350s Engine mass: 1525kg Engine + vehicle-side commodities and hardware mass : 1720kg
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Well that's quite an interesting revelation, it would imply it doesn't even get to the later stated 250t of thrust per engine. Either he got a typo there or... xitter.cf/elonmusk/status/211476…
We can only reliably get to around 230 t-F with Raptor 3
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Big move, bigger mission! The Artemis III Space Launch System core stage moved to the transfer aisle at NASA Kennedy. Next up – teams will lift and integrate the massive 212-foot-rocket with the solid rocket boosters as we prepare for the next giant leap in lunar exploration.
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Rocket Lab Space Structures Complex Update 2 October 26, 2026 Middle River, Maryland For the first time, we have Rocket Lab Neutron hardware at the lagoon, getting ready to be picked up for shipment to Wallops!! No sign of a tug and barge yet, but I'm on the lookout. @NASASpaceflight – at Middle River, MD
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Ship 43 is on its way back from Massey’s, and Ship 42 is rolling in to take its place - all while Booster 22 is being lifted off Pad 2 after its static fire. Never a dull moment at Starbase. Watch tonight’s triple header live: nsf.live/starbase @NASASpaceflight
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
So I guess two rolls tonight wasn't enough? Now that Booster 22 is off the OLM, there is ANOTHER delay tonight for it to roll back to the barn. Ship 43 is back at Production now, and Ship 42 is likely to leave soon. 🎥: nsf.live/starbase | @NASASpaceflight
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Ship 43 coming back and Ship 42 leaving 👋 @NASASpaceflight | nsf.live/starbase
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Booster 22 has returned to the Production site after its impressive static fire test. @NASASpaceflight | nsf.live/starbase
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
S43 departing Masseys entrance on the right and S42 arriving on the left. @NASASpaceflight
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Booster 22 was feeling left out. Now being lifted off Pad 2 following its successful Static Fire test. So three events are going on now! nsf.live/starbase
Ship at the double! Starship Flight 16: Ship 43 returning from Massey's. Starship Flight 15: Ship 42 taking its place. nsf.live/starbase
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Ship 43 turning onto Highway 4 under the Moon.
Ship at the double! Starship Flight 16: Ship 43 returning from Massey's. Starship Flight 15: Ship 42 taking its place. nsf.live/starbase
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Ship at the double! Starship Flight 16: Ship 43 returning from Massey's. Starship Flight 15: Ship 42 taking its place. nsf.live/starbase
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Every time an astronaut on the ISS reports on their upcoming or ongoing activity I'm like okay this goes on This Week In Spaceflight. Next episode will include a mention of the upcoming spacewalk so this video is great to show the scale of the operation!
Roll out solar arrays will be installed during next week's spacewalk. You can see two of them folded and ready to be installed and you can also see how they look when they are installed (look in front of the big ones - the new ones are smaller and slightly tilted).
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Roll out solar arrays will be installed during next week's spacewalk. You can see two of them folded and ready to be installed and you can also see how they look when they are installed (look in front of the big ones - the new ones are smaller and slightly tilted).
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
I mocked up SLS Block 1 vs SLS-Centaur vs SLS-Centaur with a kickstage The aesthetics are... interesting. But I'll take the performance to low Lunar orbit! Original pic @_MaxQ_/@NASASpaceflight
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🏳️‍🌈Alejandro Alcantarilla Romera (Alex) retweeted
Full duration 33-engine static fire for the Super Heavy booster preparing for Flight 15
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