Coming up tonight at 19:19 BST/20:19 CEST: the September #Equinox! This image from Meteosat-12, taken this morning, shows Earth near the equinox - when the terminator appears as a straight line dividing the planet into equal halves of light and dark. @wmo-global.bsky.social @eumetsat.int

Mars’s atmospheric mille-feuille 🔴🍰 Scientists are trying to crack the recipe behind these hazy layers above Mars's limb using high resolution images form @esa.int's ExoMars Trace Gas Orbiter. www.esa.int/ESA_Multimed...

Spiral, elliptical or neither? 🤔 The latest image from the NASA/ESA Hubble Space Telescope features a hard-to-categorise galaxy, NGC 2775. It has features of both elliptical and spiral galaxies – so what type is it? Read more 👉 esahubble.org/images/potw2... 🔭

Did you hear? The number of confirmed #exoplanets has surpassed 6000! 🙌 Exciting times for our #ExoplanetExplorers 🛰️ future terrestrial planet hunter, Plato 🛰️ upcoming Ariel mission looking at exoplanets' atmospheres 🛰️ our hard-at work Cheops, studying exoplanets orbiting nearby bright stars 🔭

🍝 The NASA/ESA Hubble Space Telescope has spotted a white dwarf eating a piece of a Pluto-like object in our nearby stellar neighbourhood 👉 esahubble.org/news/heic2511/ 🔭 🧪

Cosmic wind of change #XRISM makes an unexpected discovery: winds from neutron star discs are quite different from those around supermassive black holes. The discovery could reshape our understanding of the most extreme environments in the Universe 👉 www.esa.int/Science_Expl... 🔭 🧪

All eyes on comet #3I/ATLAS ☄️ Studying a comet coming from outside our Solar System is an opportunity not to be missed. Several of our missions will turn towards this interstellar voyager in the coming months. We'll keep you updated here 👉 esa.int/3IATLAS 🔭🧪

🚨Last chance to apply to the ESA Research #Fellowships in Space Science! The 2025 call is open until 22 September. Don't miss the chance to carry out your independent research at ESA, joining top experts in the field. Check conditions here 👉 www.cosmos.esa.int/web/space-sc... 🔭 🧪☄️

🐦 Fly through a 3D map of stellar nurseries ✨ Scientists have created the most accurate 3D map of star-formation regions in our Milky Way galaxy, based on data from #ESAGaia. The map extends to a distance of 4000 light-years from us, with the Sun at the centre 👉 www.esa.int/Science_Expl... 🔭 🧪

Are you an early-career scientist or engineer? Then the ESA Research #Fellowships in Space Science might be just the right opportunity for you. Check out the programme details here 👉 www.cosmos.esa.int/web/space-sc... 🔭 🧪 ☄️

What lurks behind these dense, dusty clouds? 😶‍🌫️ The heart of the neighbouring galaxy Messier 82. M82 is home to brilliant stars whose light is shaded by sculptural clouds, clumps and streaks of dust and gas 👉 esahubble.org/images/potw2... 🔭

Today, @esa.int's Columbus lab on the International Space Station circled Earth for the 100,000th time🎉 During that time, we’ve seen: 🧳4.26 billion km travelled 🧪250+ experiments 👩‍🚀16 ESA astronauts 🥼75 m³ of lab space 🕣19,280 shifts run by the Columbus Control Centre 🔗 www.esa.int/Science_Expl...

Venus is a Solar System enigma. Although Venus is similar in size and distance from the Sun to Earth, it has evolved very differently from our planet. Our #Envision mission will aim to solve some of the puzzle by thoroughly studying our closest neighbour. www.esa.int/Science_Expl... 🔭

Why apply to the ESA Research #Fellowships in Space Science? 🛰️ carry out independent research 👩‍🏫 join top experts 📍 select location of interest 💶 receive research funding 🤝 benefit from mentorship For programme details go here 👉 www.cosmos.esa.int/web/space-sc... 🔭 🧪☄️

Welcome, Plato! 🤗 On 1 September, the spacecraft arrived in the Netherlands by boat from Germany via the Rhine River. In the coming weeks, engineers will add the sunshield & solar arrays and carry out tests to confirm Plato is ready for launch 🚀 www.esa.int/Science_Expl... 🔭 #Exoplanets

A star's birth announcement 👶🎉 A young star that is still forming toward the edge of our Milky Way galaxy is sending out a celebratory looking firework 🎆 The NASA/ESA/CSA James Webb Space Telescope caught the message in infrared 👉 www.esa.int/ESA_Multimed... 🔭 🧪 1/2

Comet #3I/ATLAS is only the third interstellar object we've ever spotted ☄️ Discovered in July, the comet is making its way through our Solar System, carrying onboard clues about the formation of worlds far beyond our own. Follow its journey & what we learn about it 👉 www.esa.int/Science_Expl... 🔭🧪

We're offering approximately 5-7 #Fellowships in Space Science this year, joining the pool of about 25 Research Fellows currently hosted in our Directorate of Science. Learn how you could join us here 👉 www.cosmos.esa.int/web/space-sc... 🔭 🧪☄️

Live views of the Sun at your fingertip! 🌞 From 1.5 million km away from Earth, #SOHO constantly watches the Sun, returning spectacular pictures and data to eagerly awaiting scientists. Curious to see what SOHO observes? Head over here 👉 www.esa.int/Science_Expl... ☄️ 🔭 🧪

We hope to see you at ESTEC for #ESAOpenDay! Don't miss the change to see Plato, our upcoming exoplanet explorer mission. Registration & more details 👉 www.esa.int/About_Us/ESA... #50YearsOfESA 🔭

The NASA/ESA Hubble Space Telescope returns to this spot after more than 20 years! This is the second-largest star-forming region in the Large Magellanic Cloud. Bright, young stars light up gas clouds & sculpt clumps of dust with powerful ultraviolet radiation 👉 esahubble.org/images/potw2... 🔭

😲 Every patch of this image is a showstopper. 🤩 Every crop a beauty in and of itself. ICYMI, the NASA/ESA/CSA James #Webb Space Telescope captured this glittering glimpse of starbirth in the core of the nearby Lobster Nebula. 🔭 🧪

The ESA Research #Fellowships in Space Science are open until 22 September 2025! Applicants are invited to prepare an independent research proposal of a project based on their interests and expertise. Details 👉 www.cosmos.esa.int/web/space-sc... 🔭 🧪☄️

✨ Behind the shimmer: beautiful chaos ✨ A cosmic dust cloud is eroded by the power of massive, infant stars in this Webb image. Step inside this turbulent stellar nursery 👉 www.esa.int/ESA_Multimed... 1/3 🔭 🧪

More than meets the eye 👀 As Juice was flying by Venus on 31 August, our deep-space antenna in Spain was keeping in touch with the spacecraft. Jupiter, Juice's final destination, was also keeping a close eye on the operations. But when we looked closer, we spotted more observers. 1/2 🔭

📅Save the Date! We will be at the 76th edition of the International Astronautical Congress (IAC) in Sydney, Australia from 29 September to 3 October 2025 🔭 Read more ➡️ www.esa.int/About_Us/Exh...

Apply to the ESA Research #Fellowships in Space Science and come work with us at one of three locations: 📍ESAC near Madrid, Spain 📍ESTEC in Noordwijk, the Netherlands 📍The ESA office at the Space Telescope Science Institute in Baltimore, USA Details 👉 www.cosmos.esa.int/web/space-sc... 🔭 🧪☄️

📣 We're looking for post-docs in the fields of heliophysics, planetary science, astrophysics and fundamental physics. Come carry out your independent research with us. Apply to the ESA Research #Fellowships in Space Science 👉 www.cosmos.esa.int/web/space-sc... 🔭🧪☄️

Flyby success! ESA's Juice spacecraft passed Venus at 07:28 CEST on 31 August. This photo shows our deep-space antenna in Spain in communication with Juice during the flyby. Juice’s current location, Venus, and its destination, Jupiter, are both visible in the sky ❤️

This unassuming spiral galaxy, NGC 7456, has caught the attention of both the NASA/ESA Hubble Space Telescope and ESA's XMM-Newton satellite. Find out why 👉 esahubble.org/images/potw2... 🔭

Our #SolarOrbiter has split the flood of energetic electrons flung out into space from the Sun into two groups, tracing each back to a different kind of outburst from our star 👉 www.esa.int/Science_Expl... 1/3 🔭 🧪☀️

Reminder that ESA's Jupiter Icy Moons Explorer (Juice) flies past Venus this weekend. The spacecraft was designed to feel at home in the cold, dark environment of the Jupiter system, and it is too hot at Venus to turn the cameras on. Pics or it didn’t happen? You’ll have to trust us on this one.

Using its large field of view, Einstein Probe can monitor a huge part of the Universe at once. The mission surveys the sky to learn more about: 🕳️ black holes 🔘 neutron stars 💥 gamma-ray bursts 🌟 supernovae ☄️ emissions from comets & more Discover the mission here 👉 www.esa.int/Science_Expl... 🔭

The ethereal Butterfly Star! 🦋⭐ The NASA/ESA/CSA James Webb Space Telescope captured this young star still gathering mass from its environment. The gas surrounding it collects in dusty protoplanetary discs, where new planets can form. Read more 👉 www.esa.int/Science_Expl... 🔭🧪

🗞️The latest edition of the ESA Science Newsletter is out! Learn about: 📣 ESA Research Fellowships & other vacancies 📣 MMX Announcement of Opportunity for a Member of the Science Board 📣 XMM-Newton 25th Announcement of Opportunity Access the edition & subscribe 👉 cosmos.esa.int/web/scinews

Are you an early-career scientist or engineer? Then the ESA Research #Fellowships in Space Science might be just the right opportunity for you. Check out the programme details here 👉 www.cosmos.esa.int/web/space-sc... 🔭 🧪 ☄️

A new view of the Butterfly Nebula! 🦋 Webb joined forces with ALMA to bring you this unprecedented view into the heart of the nebula – seen here alongside optical & near-infrared images from Hubble. A stellar example of teamwork 👏 Read more 👉 www.esa.int/Science_Expl... 🔭 🧪

Happy #InternationalDogDay! 🐕‍🦺 We're celebrating Canis Major, the 'Greater Dog' of the sky! What cosmic treats await? 👇

To understand our Milky Way's history, we need to study star clusters. Gaia excelled at this, having: ✨ performed a cluster inventory 💫 mapped the Sun’s neighbourhood 🔗 revealed hidden links in the sky With more data still to come, Gaia has a lot more to teach us 👉 www.esa.int/Science_Expl... 🔭

Discovering exoplanets is just the beginning. Follow-up observations are key to truly understand these distant worlds—that’s where #ESACheops comes in. With sharp precision & stability, Cheops determines a planet's size, while also identifying the best candidates for future study esa.int/cheops 🔭

🚨Call for applications: Research Fellowships in Space Science 2026! Through our #fellowships, post docs can carry out independent research, specifically in heliophysics, planetary science, astrophysics & fundamental physics. Read more 👉 www.cosmos.esa.int/web/space-sc... #ESArecruits 🔭 🧪 ☄️

Back on track & ready for Venus! ✅📍 After the successful resolution of a communication anomaly, #ESAJuice is on course for its Venus flyby at 07:28 CEST on 31 August. 1/3 🔭 🧪

Spotted: a cosmic tug-of-war in action! 🌀 The gravitational pull of galactic neighbours may be responsible for this galaxy's asymmetric appearance. This is the third time the NASA/ESA Hubble Space Telescope has captured this galaxy. Find out why 👉 esahubble.org/images/potw2... 🔭

🌕 Surprise in Uranus’ sky! Astronomers have just spotted a new moon in images taken by the NASA/ESA/CSA James Webb Space Telescope. Check it out alongside 13 of the 28 other known moons orbiting the planet. Read more about S/2025 U1 👉 esawebb.org/images/uranu... 🔭🧪

📸 It's #WorldPhotographyDay2025! We've sent cameras to some amazing places, and we're getting ready to send more. Here are some 'out of this world' views (and a couple of 'out of this world' photographers 😉) @eumetsat.int @science.esa.int @stsci.edu @exploration.esa.int @esaearth.esa.int

✅ Registration is now open for #ESAOpenDays (11 October, Disability Access Day) at ESA ESTEC 👇 (note: General Public Day registration opens 8 Sept.)

This image returns to a previous target of the NASA/ESA Hubble Space Telescope, the spiral galaxy NGC 2835, this time incorporating H-alpha emission data. The regions bright in this emission can be seen in bright pink along the galaxy’s spiral arms. Read more 👉 esahubble.org/images/potw2... 🔭

#ESAAriel will study no less than 1000 exoplanets in our galaxy. Its observations will tell us more about: ✅ the ingredients of exoplanets' atmospheres ✅ the presence of clouds ✅ weather conditions changes Discover more at esa.int/ariel 🔭

The NASA/ESA Hubble Space Telescope has uncovered the dramatic past of a white dwarf, thanks to the detection of carbon in its atmosphere! Read more 👉 esahubble.org/news/heic2510/ 🔭 🧪

The TRAPPIST-1 d exoplanet may be Earth-sized 🌍 but it has no Earth-like atmosphere. Webb’s #NIRSpec has found no traces of molecules that are common in Earth’s atmosphere. Read more 👉 www.esa.int/Science_Expl... 🔭 🧪