Eleftherios Kosmas

Vice chair @LibreSpace_Fnd making open-source space technologies, Operator at @hackerspacegr, @UoAofficial sleep technologist, @Lytra_Eleni's husband, father.

[LibreSpaceFoundation @LibreSpace_Fnd]

The Libre Space Foundation is heading to Space Tech Expo Europe in Bremen, Germany, from November 17–19, 2026!
Interested in connecting with our team?
Book a meeting by sending us a direct message or using our contact form.
https://t.co/xtrMHlaNWc

[Theodore Lytras @TheodoreLytras]

"Someone once told me that time was a predator that stalked us all our lives. But I'd rather believe that time is a companion that goes with us on a journey. Reminds us to cherish every moment; because it'll never come again."
RIP Captain... thanks for all the wonderful memories.

[LibreSpaceFoundation @LibreSpace_Fnd]

Drop by our stand at PyCon Greece in central Athens, Greece.
https://t.co/RoCI8N09Xn

[LibreSpaceFoundation @LibreSpace_Fnd]

We are heading back to orbit🛰️✨!
Our #opensource PICOBUSv2 deployer will fly on @SpaceX's Transporter-18, inside UARX Space's OSSIE-D, carrying 8 QUBIK-based PocketQubes:
🛰️ 1 NIS-PQ (@nis_education)
🛰️ 3 ERMINAZ-2 (@amsatdl)
🛰️ 4 SIDLOC-PQ (@LibreSpace_Fnd)

[LibreSpaceFoundation @LibreSpace_Fnd]

🎉4 years ago, @LibreSpace_Fnd's QUBIK-3, 4, & the PICOBUS, went to space on @FireflySpace 's Alpha Flight 2. #ToTheBlack🚀
As we prepare for a new mission, we celebrate this milestone and focus on what's next.
️ https://t.co/kLf88bB6RB

[Open Cosmos @Open_Cosmos]

A key milestone for Open Cosmos Aegean: a new ground station in Crete is now operational  

Open Cosmos have led the consortium responsible for building a new satellite ground station hosted at the Foundation for Research and Technology – Hellas (FORTH) in Crete. Consortium member Libre Space Foundation integrated the station's subsystems into a single working system, delivered the pass scheduling and control software, and installed and brought the station into service, which it continues to support.

This is a vital step for Greece’s Small Satellite Program which aims to build a constellation to enable real-time Earth Observation, maritime surveillance, and environmental monitoring capabilities across the region. 

“Our work doesn’t stop at launch. We also help build the infrastructure Greece needs to communicate with its satellites and put their data to use. The ground station in Crete shows what we can achieve by bringing together international experience, Greek expertise and strong partnerships.” -  Marita Georganta, Ground Segment Team Lead, Open Cosmos Aegean
Congratulations to all the teams who made this possible!

This project is part of the Greek National SmallSat Programme led by Greece’s Ministry of Digital Governance and Artificial Intelligence, in cooperation with the Hellenic Space Center and ESA, with funding from the Recovery and Resilience Facility.

Read more: https://t.co/tlPDIbeZE2

[Eleftherios Kosmas @elkos]

@TheodoreLytras Will check if we can add more mapping info at @openstreetmap using #streetcomplete this summer. Will also check @OrganicMapsApp

[Eleftherios Kosmas @elkos]

@TheodoreLytras Would it be possible to ask it to create a script to parse the documents for the needed output, something in python that's fairly readable?

A well designed agentic harness would use proper linting tools or even LSP solutions to create something more deterministic.

[Eleftherios Kosmas @elkos]

Είχα την τύχη να μιλήσω στο @WiredGreece για την αποστολή PHASMA του @LibreSpace_Fnd με τους δορυφόρους LAMARR & DIRAC και για το πως οι ανοιχτές τεχνολογίες μπορούν να λειτουργήσουν σαν καταλύτης για ένα ποιο ανοιχτό διάστημα.

https://t.co/GJMoybMXtv

[LibreSpaceFoundation @LibreSpace_Fnd]

📌The PHASMA-DIRAC 🛰️ is one of the #CubeSat platforms comprising the @LibreSpace_Fnd’s #PHASMAmission. Named after Paul Dirac, the renowned British theoretical physicist, regarded as one of the founders of quantum mechanics.
@esa @EsaTelecoms @Exolaunch
https://t.co/Nkh2DK8gq7

[Eleftherios Kosmas @elkos]

🇬🇷 Designed & made in Greece
🔓Open hardware, software and data
♥️ by the awesome people of @LibreSpace_Fnd, at the @hackerspacegr with the support of 100s of contributors
🛰️🛰️🛰️🛰️🛰️ our 4th and 5th satellite in orbit
🚀🚀🚀🚀 the fourth rocket launch we have assets on-board

[LibreSpaceFoundation @LibreSpace_Fnd]

The #PHASMAmission will run in-orbit experiments in spectrum monitoring, radio-frequency interference identification and better tracking of orbital objects to contribute to space situational awareness.
Read to discover more about the #PHASMAmission.
https://t.co/Nkh2DK7IAz

[Eleftherios Kosmas @elkos]

🚀 The #OSCW25 schedule is out!
See what’s happening this 25–26 Oct in Athens — from SatNOGS and PHASMA to open-source licensing for space hardware & data.
👉 https://t.co/mIYCkNdf7d
Join us for a weekend of open space exploration! 🌍🛰️

[LibreSpaceFoundation @LibreSpace_Fnd]

📆The full Open Source Cubesat Workshop schedule is officially live! 🎉
Take a look at the full list of presentations, workshops, and lightning talks we have lined up for you. #OSCW25
https://t.co/BYf2w4X5gX

[EIRSAT-1 @EIRSAT1]

The final beacons showed temperature increasing and spin-rate at more than 85 degrees/second. Thanks to everyone @SatNOGS who tracked the spacecraft in its final days. @ucddublin @ESA__Education

[LibreSpaceFoundation @LibreSpace_Fnd]

📌The deadline to submit your abstract for the Open-Source CubeSat Workshop is tomorrow, August 10th! Don't miss this opportunity to share your work on #opensource hardware and software for space.
#OSCW2025
Submit your abstract: https://t.co/kz41CK2E2Q

[Eleftherios Kosmas @elkos]

🇫🇷🎥 video in French

In 31/3 the French TV show Smart Tech on @B_SMART_TV featured @LibreSpace_Fnd open-source work feat. UPSat, and mentioning QUBIK and @SatNOGS.

interesting to see people talk about our work in other languages.

Here's the segment;
https://t.co/yPW54twaIa

[Eleftherios Kosmas @elkos]

🚀 At #38C3, Paul Koetter & @LibreSpaceFdn's Manthos Papamatthaiou shared the journey of #SIDLOC & Curium One—from integration to flying on Ariane 6’s maiden flight! 🛰️

Catch their talk in the link bellow (in English & German).

#OpenSource #SpaceTech #SIDLOC #CuriumOne #Ariane6

[LibreSpaceFoundation @LibreSpace_Fnd]

📌In Dec 2024, Paul Koetter & LSF's Manthos
Papamatthaiou took the stage at the #38C3 in Hamburg, Germany. Sharing the journey of the #SIDLOC experiment & the Curium One #satellite 🛰️ from integration to flying to space successfully on the Ariane 6.🚀
https://t.co/Kd6hMMTyl1

[LibreSpaceFoundation @LibreSpace_Fnd]

📌In Dec 2024, Paul Koetter & LSF's Manthos
Papamatthaiou took the stage at the #38C3 in Hamburg, Germany. Sharing the journey of the #SIDLOC experiment & the Curium One #satellite 🛰️ from integration to flying to space successfully on the Ariane 6.🚀
https://t.co/Kd6hMMTyl1

[Eleftherios Kosmas @elkos]

@CONSTANTIN_BRB @geoparts1 @petropouliotiz To R αν είσαι μερακλής δεν χρειάζεται καν οθόνη.

[Eleftherios Kosmas @elkos]

@TheodoreLytras my issue is that while the marketing is "control your device from afar" what they don't say is "get in our walled ecosystem and buy a subscription"

On the other hand, projects like home assistant, tasmota, valetudo, gadgetbridge etc maybe challenging for most people.

[LibreSpaceFoundation @LibreSpace_Fnd]

Drop by our stand at @fosdem!
Find us at the K building on the second level (K2-A-5).
📍https://t.co/BMa3CyloYl