Unistellar

🚀 Meet S301: the fastest known star in the Milky Way!

Reaching 25,000 km/s (8% the speed of light), S301 races around our galaxy’s supermassive black hole, Sagittarius A*. 🌌

Its extreme orbit could help scientists measure the black hole’s spin for the first time. 🔭

Source : Iain Todd for skyatnightmagazine.com/news/star-s301

🚀 Une grande nouvelle pour l'astronomie française !

D'ici 2029, la France accueillera PROVIDENCE, un télescope de nouvelle génération unique en Europe. Capable de suivre les satellites en orbite et d'observer des objets fascinants comme l'astéroïde Apophis, il renforcera notre capacité à surveiller… et à mieux comprendre l'espace. 🔭✨

Le ciel n'a pas fini de nous révéler ses secrets.

Source : Onera
Crédit photo : La Tribune

#Astronomie #Espace #ONERA #Apophis

🌒 The August,12nd total solar eclipse is almost here!

What happens during totality? Where should you watch it? How can you observe it safely?
☀️ Everything you need is in the Unistellar Eclipse Guide:
eclipse.unistellar.com/fr/

#SolarEclipse #Eclipse2026 #Astronomy #Unistellar

☄️ A cosmic case of mistaken identity.

For nearly 30 years, astronomers thought 1998 SH2 was an asteroid. NASA has now confirmed it's actually a comet : its faint outgassing subtly changed its orbit, giving away its true nature. 🔭

A reminder that the Solar System can still surprise us and why continuous tracking is key to planetary defense. 🌍

Source : Science et Vie
Image : Cité de l'espace
#Comet #Asteroid #PlanetaryDefense #Astronom

👽Search clues about life beyond earth with Unistellar and @SETIInstitute !

Our citizen scientists help study distant worlds, 50 years after the mysterious Wow! signal, one question remains: Are we alone?

Click here to discover more about this signal : nationalgeographic.fr/espace/astrono….

Source : Ohio State University Radio Observatory (OSURO) and North American Astrophysical Observatory (NAAPO).

#SETI #UNITE #CitizenScience #Astronomy #SpaceScience

🌌 Euclid telescope just captured 60 million stars in a single image...Think you can add a few thousand more? ✨

Point your Unistellar telescope toward the Milky Way and capture stars on your own. Then share your best shot with #Unistellar.

Let's see who can capture the most stars! 🔭

Source : ESA.

☄️ Heads up for NC1, skywatchers!

🔭 Look up on June 27: 1997 NC1 will reach its closest approach at 11:14 GMT, visible from the Northern Hemisphere during its approach and from most of the world at flyby.
It will pass about 2.6 million km from Earth (6.7× the Earth-Moon distance), but with zero impact risk. 🌍

It's a reminder that our cosmic neighborhood is always in motion !✨

#Asteroid #Astronomy #PlanetaryDefense #SpaceScience

Source : The European Space Agency (ESA)

Nous sommes heureux de participer à l'édition 2026 des #NuitsDesEtoiles avec nos partenaires, mettant à disposition nos télescopes lors d'une centaine d'événements pour vous permettre d'aller toujours plus loin dans l'observation du cosmos.

☄️ A 12-billion-year-old visitor from another star system?

According to a new study published in @Nature, interstellar comet 3I/ATLAS may be one of the oldest objects ever observed near the Sun. Its chemistry is unlike anything found in our Solar System, offering a glimpse into the conditions that existed in the young Milky Way.
Some cosmic visitors carry stories older than our Sun...🌌

Credit : our Community's member Shoji Nishimura, from Kumamoto.

Click here to know more : nature.com/articles/s4158….
#3IATLAS #Astronomy #Comet #Space

NASA's image of the day: Flying Past Neptune's Moon Triton. 🌌🛰️

NASA highlights a stunning visualization built from images captured by Voyager 2 during its 1989 flyby of Triton—the only spacecraft ever to visit Neptune's largest moon. 🧊
Home to icy volcanoes, frozen nitrogen plains, and strange "cantaloupe terrain," Triton remains one of the Solar System's most mysterious worlds.

Clear skies! ✨🔭
#APOD #NASA #Voyager2 #Triton #Neptune #Astronomy #SpaceScience

🏆🌌 2026 Kavli Prize: uncovering the Milky Way's hidden past !

Vasily Belokurov, Amina Helmi, and Rodrigo Ibata are being honored for revealing how our galaxy formed by absorbing smaller galaxies over billions of years. ✨

#KavliPrize #Astronomy #MilkyWay
Source : ESA

☀️ The Sun may be waking up.

After nearly 20 years of declining activity, NASA scientists are seeing signs that our star is becoming more active again...bringing stronger solar storms, more flares, and potentially greater impacts on satellites and space weather. 🌞⚡️

Click here to know more : nationalgeographic.fr/espace/nouvell….

#Sun #SpaceWeather #NASA #Astronomy #SpaceScience

Source : Science & Vie, NASA
Photo by NASA, GSFC, SDO.

💎 Imagine a weather forecast with 18,000 km/h winds and showers of rubies and sapphires. ☄️

That's the reality of WASP-121 b, an ultra-hot exoplanet studied by the James Webb Space Telescope. On this alien world, extreme temperature differences drive violent winds, while minerals can condense into gem-like rain on the cooler side of the planet. 🌌✨

The Universe keeps proving that reality is stranger than science fiction.

#JWST #JamesWebb #Exoplanet #Astronomy #SpaceScience

Credit : Space.com, @lesnums
Photo : generated by @_NotreEspace_

🐹✨ Meet Longmore 8, better known as the Hamster Wheel Nebula.

Featured as NASA's Astronomy Picture of the Day, this striking cosmic bubble is the glowing remnant of a dying star, sculpted over thousands of years. 🌌

What's the first thing you see in this celestial wheel?

#APOD #Astronomy #Space #Nebula
Credit : Mazlin, Parker, Forman, Magill, Hanson

🌟 Unistellar congratulates Ken’ichi Nomoto and Stanford Woosley, winners of the 2026 Shaw Prize in Astronomy!

Their pioneering work on stellar explosions and the origin of the elements has reshaped the understanding of how the Universe creates the building blocks of planets, stars...and even ourselves ! 💥✨

Credit : @ShawPrize

At 11:23 GMT today, asteroid 2026 JH2 will make a close flyby of Earth — just ~90,000 km/56,000 miles away — with zero impact risk. 🪨🌍

Too faint to see with the naked eye (mag 11.8), but it may be visible with a telescope for keen observers 👀🔭

Join Unistellar’s citizen science program and help track asteroid occultations! 🚀help.unistellar.com/hc/en-us/artic…

Artemis' commander Andrew McCarthy teams up with Reid Wiseman : a visual collaboration bringing the Moon’s far side into a whole new light 🌕

NASA Artemis II commander Reid Wiseman teamed up with astrophotographer Andrew McCarthy to create breathtaking new images of the Moon’s far side, blending human spaceflight with cutting-edge astrophotography techniques.

A powerful reminder that the next era of space exploration is as much about inspiring people as it is about pushing boundaries.
YOU can also take stunning spatial pictures with Unistellar and tag us with the hasthags #Unistellar #Unistellarastrophotography ! 📸

Credit : Andrew McCarthy, stacked photo compilation of the far side of the moon.

NASA's image of the day : Comet R3 PanSTARRS Behind Satellite Trails. ☄️

NASA highlights a striking image by Uli Fehr: Comet R3 PanSTARRS Behind Satellite Trails.

🌌 If skies are clear, amateur observers may have a chance to capture Comet R3 PanSTARRS before dawn, which is around magnitude 8. Look towards the eastern sky, in the constellations Pegasus and above Pisces in the northern hemisphere.

Clear skies !

Go on a Search for Exoplanets ! 🪐

On Earth Day, we celebrate our planet, which is just one among billions. And today, you can help discover other planets orbitting around other stars with our Exoplanet transits mission.

🔭 With Unistellar’s citizen science program, our community contributes to real research. Join the program along SETI scientists and citizen astronomers clicking this link : science.unistellar.com/exoplanets/ !

Credit : @SETIInstitute

🌍 Earth Day Special

Celebrate our planet by exploring what’s beyond it.
Enjoy 15% off all Unistellar products, for a limited time.

Look up, stay curious.