52 Photos and videos
Sean Blair retweeted
Jun 9
🛰️I'm currently speeding my way thru deep space to the Dimorphos🪨asteroid, the only Solar System body whose orbit has been shifted by human action - when NASA's DART spacecraft💥impacted it - to check what happened to it next! See where I am right now: whereis.space/hera/
ALT The trajectory of the Hera spacecraft relative to the Dimorphos asteroid and the orbits of the inner planets
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Sean Blair retweeted
May 29
Everything you wanted to know about asteroids but were afraid to ask... ! Hera Principal Investigator Patrick Michel has a new book out on planetary defence & asteroids - in 🇫🇷 - odilejacob.fr/catalogue/scie…
ALT Book cover of La Défense planétaire contre les astéroïdes with an image of a body streaking towards Earth's surface
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Sean Blair retweeted
May 8
A new chapter in the ESA—JAXA cooperation on planetary defence. 🌍
The agreement signed this week confirms collaboration on #Ramses, our mission to asteroid Apophis ahead of its rare close flyby in 2029. Space safety is a priority.
🔗 esa.int/Space_Safety/Planeta…
ALT ESA and JAXA deepen collaboration in planetary defence
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Sean Blair retweeted
May 7
Hera is part of ESA's Space Safety programme, protecting our planet, people & infrastructure from space hazards.
🚨Last call! 🚨On 16 June our Space Safety Industry Day at #ESTEC in 🇳🇱 shares how European industry can partner in our work - come join us! 👉 indico.esa.int/event/646/ove…
ALT ESA's ESTEC technology centre seen from the air, among coastal sand dunes.
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Sean Blair retweeted
11 Dec 2025
Where there’s a wing there’s a way!
Time-lapse of a section of aircraft wing being 3D printed in lightweight plastic. Startup Wren Aerospace – based at @SBICNoordwijk – is developing uncrewed aircraft to perform satellite-like communication or observation functions while hanging in the stratosphere wrenaerospace.com/
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Sean Blair retweeted
10 Dec 2025
#ESAhighlights 2025 is out now. 👀
Read our free ESA Highlights magazine, summarising a complete year of space activity in impactful images and in-depth articles. 📅
👇esa.int/About_Us/ESA_Publica…
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Sean Blair retweeted
20 Oct 2025
Check out ESA's 50 milestone achievements during our first half century in our ESA Delivers brochure: esa.int/About_Us/ESA_Publica…
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Sean Blair retweeted
20 Oct 2025
One small step for a European... On this day in history - 20 Oct 1995 - ESA astronaut Thomas Reiter performed the first ESA spacewalk, during his Euromir mission to the Mir space station
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Sean Blair retweeted
7 Oct 2025
One year ago #HeraMission was stranded on Earth, its launcher grounded, as a hurricane closed in on its launch site. 12 months later sees it cruising on the far side of the Sun. Learn the story of Hera in space: esa.int/ESA_Multimedia/Video…
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Sean Blair retweeted
7 Sep 2025
Tomorrow’s the day! 🚀
⏰ On Monday 8 September, registration opens for the ESA ESTEC Open Day!
Don’t miss your once-a-year chance to explore space up close – including a special look at the Plato mission, ESA’s upcoming planet-hunting spacecraft 🌌🔭
📅 Open Day: Sunday, 12 October
📍ESA ESTEC, Noordwijk, the Netherlands
📲Stay tuned and follow our partners!
@spacerockslive @Spaceexpo @VisitNoordwijk @nl_campus @SBICNoordwijk @SpacebuzzO
#ESAOpenDay #50YearsOfESA #NLSW25 #NLSpace #NetherlandsSpace #spacefortalent #SpaceRocks #NSO
7 Sep 2025
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Morgen is het zover! 🚀
De inschrijving voor de ESA ESTEC Open Dagis geopend.
Mis deze unieke kans niet om de ruimte van dichtbij te verkennen, inclusief een speciale blik op de PLATO-missie, ESA's aankomende ruimtesonde voor het zoeken naar planeten. 🌌🔭
📲 Mis geen updates van onze partners! @spacerockslive @Spaceexpo @VisitNoordwijk @nl_campus @SBICNoordwijk @SpacebuzzO
#ESAOpenDay #50YearsOfESA #NLSW25 #NLSpace #NetherlandsSpace #spacefortalent #SpaceRocks #NSO
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Tomorrow’s the day! 🚀
Registration opens for the ESA ESTEC Open Day.
Don’t miss your once-a-year chance to explore space up close — including a special look at the PLATO mission, ESA’s upcoming planet-hunting spacecraft. 🌌🔭
📲 Don’t miss update from our partners! @spacerockslive @Spaceexpo @VisitNoordwijk @nl_campus @SBICNoordwijk @SpacebuzzO
#ESAOpenDay #50YearsOfESA #NLSW25 #NLSpace #NetherlandsSpace #spacefortalent #SpaceRocks #NSO
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Sean Blair retweeted
2 Sep 2025
Read all our 50 hallmark achievements to mark ESA's first half century in our ESA Delivers booklet, downloadable here: esa.int/About_Us/ESA_Publica…
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Sean Blair retweeted
2 Sep 2025
Today at #ESTEC in 🇳🇱 we celebrate 30 years of ESA Navigation activities, which resulted in the world's most accurate satellite navigation system, Galileo - one of our 50 hallmark achievements in our 50 year anniversary!
ALT Entry in the ESA Delivers booklet
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Sean Blair retweeted
20 Jun 2025
An agency is defined by taking action - so what has the European Space Agency been doing during its first 50 years? Find out in our new brochure: esa.int/About_Us/ESA_Publica…
ALT A double page spread from the ESA Delivers brochure
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Sean Blair retweeted
20 Jun 2025
ESA Delivers: discover 50 ways Europe’s space agency changed our world (& the universe!) during the last five decades: esa.int/About_Us/ESA_Publica…
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Sean Blair retweeted
26 Mar 2025
As #HeraMission flew past planet Mars it autonomously locked onto dozens of impact craters and other prominent surface features, tracking them over time, to test the self-driving technology the mission will employ to navigate around its target asteroids esa.int/Space_Safety/Hera/He…
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Sean Blair retweeted
10 Mar 2025
This Wednesday our #HeraMission flies past Mars & its Deimos moon. On Thursday join our star-studded webcast - featuring ESA astronaut @Astro_Alex , SF author @AndyWeirAuthor & a surprise special guest - to see the images the car-sized spacecraft returns to Earth! esa.int/Space_Safety/Hera/Wa…
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25 Jan 2025
The Collection: Season 7 TRAILER | Doctor Who youtu.be/gRXWuvIVWBY?si=-Mku… via @YouTube
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Sean Blair retweeted
17 Jan 2025
Seed-sized space chip🤏The task of this tiny signal amplifier designed by @esa is to boost faint signals to usable levels, making future radar-based and telecommunications space missions possible📡
👉esa.int/ESA_Multimedia/Image…
ALT tiny space chip held in tweezers and compared to a needle
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Sean Blair retweeted
15 Jan 2025
Proba-3 twin satellites separated!🛰️🛰️Under the watchful eye of operations team at @esa's ESEC, the pair said goodbye to each other last night, 14 January 23:00 GMT. When their Sun-observing mission starts, the two will adopt a stable configuration at 150 m away from each other, ready to create artificial eclipses on demand☀️esa.int/Enabling_Support/Spa…
ALT Proba-3 satellites after separation
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