Holger Voss Ph.D. (@SpaceHolgar) header
Holger Voss Ph.D. (@SpaceHolgar) profile picture

Space geek, Model rocketeer working for @RocketryKlima, Space & STE(A)M educator, Astrophysicist worked for #ESA #GaiaMission, #MoonDot Mission Director

3rd Rock from the Sun
Joined July 2013
Photo by Holger Voss Ph.D. (@SpaceHolgar)Photo by Holger Voss Ph.D. (@SpaceHolgar)Photo by Holger Voss Ph.D. (@SpaceHolgar)Photo by Holger Voss Ph.D. (@SpaceHolgar)Photo by Holger Voss Ph.D. (@SpaceHolgar)Photo by Holger Voss Ph.D. (@SpaceHolgar)Photo by Holger Voss Ph.D. (@SpaceHolgar)Photo by Holger Voss Ph.D. (@SpaceHolgar)Photo by Holger Voss Ph.D. (@SpaceHolgar)Photo by Holger Voss Ph.D. (@SpaceHolgar)
These were the 6 launches of my models of the @ESA launcher #Ariane6 (made by @ArianeGroup) & #Vega (by @Avio_Group), and the @ulalaunch #AtlasV - for the first educational #MoonDot mission of @JrAstronautin! #minilaunchers 🚀 #STEMed #STEAM Full HD: youtu.be/BhWW1n1kBSM
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Holger Voss Ph.D. retweeted
Spot the hidden asteroid! One half of the Didymos binary system is front & centre in this new image from ESA's Hera mission for planetary defence, taken from 56 km away - but can you see the other half, asteroid Dimorphos? esa.int/articles/about-us/di…
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Congratulations to the Chameleons! 🦎📷🚀
A milestone worth celebrating! 🎉✨ Members of @esa's astronaut reserve have completed their Astronaut Reserve Training, celebrated with a special ceremony at the European Astronaut Centre in Cologne 🇩🇪 Congratulations to the Chameleons! 🦎🚀 🔗 esa.int/articles/about-us/di…
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Holger Voss Ph.D. retweeted
This spacecraft selfie🤳from deep space shows the top deck of ESA's Hera asteroid mission🛰️& the sticker with Hera's newly-named dinosaur🦖mascot - meet Chicxu! esa.int/articles/about-us/di…
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Holger Voss Ph.D. retweeted
Closing in on Didymos. ☄️ Our planetary defence mission Hera has captured its first close-up of the binary asteroid system, 60 km away, as it prepares to investigate the aftermath of DART’s historic impact with Dimorphos. Detailed images of both asteroids are coming on 25 November. Read more: esa.int/articles/about-us/di…
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Holger Voss Ph.D. retweeted
Over 23 000 visitors joined us for ESA Open Days 2026, exploring our sites, meeting the people behind our missions and discovering Europe’s space activities 🚀 Relive some of the highlights, and stay tuned to join us next year: youtube.com/watch?v=OUyYPzyt…
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Holger Voss Ph.D. retweeted
✨ Find your place in space! 🚀 🎉 Discover Space for Everyone, a new online course from ESA Education that offers an accessible introduction to the many disciplines that make the space sector possible. 🌍 Free and open to everyone, with no prior knowledge required, Space for Everyone explores a wide range of topics such as astronomy and space engineering, space law, business, life sciences and the role of space in our everyday lives. 🛰️ 🌟 Ready to explore space? 🔗 education.esa.int/find-your-… 📸: ESA - NASA/JSC - L. Harnett
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Holger Voss Ph.D. retweeted
🇩🇪🇨🇭🇦🇹 Wer ist dieser Tage auf der Faszination Modellbau Messe Friedrichshafen? Dann kommt doch einfach mal bei uns vorbei in Halle 3 Stand 3620! Firmeninhaber Robert Klima ist selbst vor Ort und berät Sie gerne zu den Themen #Modellraketen, #Raketen-#Flugzeugen, #Rauch, u.v.m.!
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Holger Voss Ph.D. retweeted
... and this is the video showing the 2nd double launch of the #ESASpaceCamp 2026 #RocketryChallenge ! The ''NEELA-1'' rocket is launching first, followed shortly after by the ''Vampire" rocket both propelled by 4 B4 motors! Two great launches! #STEMEd #STEAM #ESA #rocketry 🚀
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Holger Voss Ph.D. retweeted
Here we go with the video showing the 1st double launch of the #ESASpaceCamp 2026 #RocketryChallenge at mini @SpaceportBayern! The ''DJ-2'' rocket is launching (4 B4 motors) followed by the ''Thor's Hammer" rocket (3 C6 and 2 B4)! Two perfect flights! #STEMEd #ESA #rocketry🚀
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Here we go with the video showing the 1st double launch of the #ESASpaceCamp 2026 #RocketryChallenge at mini @SpaceportBayern! The ''DJ-2'' rocket is launching (4 B4 motors) followed by the ''Thor's Hammer" rocket (3 C6 and 2 B4)! Two perfect flights! #STEMEd #ESA #rocketry🚀
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... and this is the video showing the 2nd double launch of the #ESASpaceCamp 2026 #RocketryChallenge ! The ''NEELA-1'' rocket is launching first, followed shortly after by the ''Vampire" rocket both propelled by 4 B4 motors! Two great launches! #STEMEd #STEAM #ESA #rocketry 🚀
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Vielen Dank für das schöne Video @ESA_de - und dass wir dort auch #Modellraketen vorstellen durften! Bin sogar zu sehen: der Typ mit den Modellraketen in der Mitte des Videos! 😎 #ESAOpenDay #ESOC #MINT
Mehr als 2.000 Besucher*innen haben beim ESA Open Day 2026 im ESOC in Darmstadt einen Blick hinter die Kulissen der europäischen Raumfahrt geworfen. 🚀 Im Rückblickvideo könnt ihr die schönsten Momente noch einmal erleben. ⬇️ esa.int/ESA_Multimedia/Video…
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Holger Voss Ph.D. retweeted
this is one of the coolest science missions of the year and I am shocked more people aren't talking about it?? in a few hours @JAXA_en launches its mission to Phobos, one of Mars' two moons & it is wild that in 2026 we still don't know what Phobos is: captured asteroid? debris from something smashing into Mars? some unknown third thing? MMX is flying all the way there to settle it with at least 10 grams of rock, which is will bring home by 2031.
Martian Moons eXploration (MMX) aboard the H3 Launch Vehicle No. 10 is set to launch on October 20! Watch the launch live via the link below 🔽 youtube.com/live/Fn6gzuGa-6c 🎥 Activity Report Mini #MMX #H3F10 #JAXA
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Congrats to all involved in the launch of the very exciting and inspirational #MMX mission of @JAXA_en with important contributions from @CNES and @DLR_SpaceAgency with the fantastic #Idefix rover! That's a real sample return mission from the Mars moon #Phobos! How cool is that?
Next stop: Phobos & Deimos 🌑 MMX has successfully launched from Tanegashima, Japan. Its mission is to observe Mars’s mysterious moons, collect a sample from Phobos's surface and return it to Earth. 👉 esa.int/ESA_Multimedia/Image… @JAXA_en @NASA @CNES DLR @ESA
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I am just watching the launch of the very exciting and inspirational #explorational #MMX mission of @JAXA_en with important contributions from @CNES and @DLR_SpaceAgency with the fantastic #Idefix rover ! That's a real sample return mission from the Mars moon #Phobos! How cool!
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Holger Voss Ph.D. retweeted
We're developing a service station for the Moon. 🌕 OASIS will provide power, communications and data services to scientific experiments, helping them survive the two-week lunar night and operate for years on the surface. Read more: esa.int/Science_Exploration/…
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Holger Voss Ph.D. retweeted
... we were flying the rockets made by students at #ESASpaceCamp 2026 in #Spain in pairs while 5 cameras were recording the flights, including one on a #drone! Expect some great video footage from the flights at mini @SpaceportBayern very soon! #STEAM #STEMEd #ESA #rocketry 🚀
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Finally, we can report about the successful flyouts of the #ESASpaceCamp 2026 #RocketryChallenge made at mini @SpaceportBayern of @RocketryKlima ! All 4 rockets performed very well trying to reach a target altitude of 120m with an egg payload! #STEAM #STEMEd #ESA #rocketry 🚀
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... we were flying the rockets made by students at #ESASpaceCamp 2026 in #Spain in pairs while 5 cameras were recording the flights, including one on a #drone! Expect some great video footage from the flights at mini @SpaceportBayern very soon! #STEAM #STEMEd #ESA #rocketry 🚀
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Es war uns eine Ehre und natürlich auch Freude mit unseren #Modellraketen 🚀 wieder am Tag der offenen Tür der @ESA_de in #Darmstadt dabei gewesen zu sein! Vielen Dank! #ESAOpenDays #ESOC #MINT #ESASpaceCamp #RocketryChallenge #Vega #Ariane6 #ESA
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