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@drnereide.bsky.social Sep 27, 2026, 4:01 PM

Think you know Jupiter? In ultraviolet light, it can look like almost another planet.

Dark poles, a dark Great Red Spot, one bright oval that fades.

#Hubble reveals clouds and hazes the eye cannot see.

📷NASA, ESA, Hubble, Judy Schmidt

apod.nasa.gov/apod/ap18101...

🧪🔭⚛️ #planetsci #astronomy

Jupiter sits big and round against black. This is near-ultraviolet, false color.
Bands run across the disk in cyan, pink and muted brown instead of the usual cream and orange. The poles look darker brown with slightly pinkish clues. On the left side of the planet a large storm, the Great Red Spot, is also dark rather than red. Just to its right a smaller oval that would look white in visible light is similarly dark. Farther right a chain of storms, the String of Pearls, stands out bright pink.A small round disk at upper left, off the planet’s limb, is Ganymede.
A thin credit line at lower right reads NASA, ESA, Hubble, Processing: Judy Schmidt.

@stim3on.bsky.social Sep 27, 2026, 3:07 PM

Coming up tomorrow, ESA's Juice spacecraft will fly past Earth for another gravity assist!

I had the fantastic opportunity to help planning the JMC shots this time around. We're trying a bunch of new things with this camera, so I'm really excited to see how they'll turn out.

🔭🧪 #planetsci

@drspacejunk.bsky.social Sep 26, 2026, 11:41 PM

If you want to read the GEGSLA report 'The sustainable management of lunar natural and cultural heritage: suggested principles and guidelines', you can find it here. 🧪 🏺 #PlanetSci #SpaceArchaeology

@drnereide.bsky.social Sep 25, 2026, 3:12 PM

This extraordinary image was created by reprocessing & merging 16 frames from Voyager 1's flyby of Jupiter in 1979.

Just right of center, you can see the Great Red Spot, a huge storm system.

➡️ apod.nasa.gov/apod/ap20062...

Credit: NASA/JPL-Caltech/A. Tranchandon

🔭🧪⚛️ #histsci #planetsci

Voyager 1 view of Jupiter. Banded clouds wrap the planet in beige, cream & pale brown. Just right of center sits the Great Red Spot, an oval storm flushed orange-red. Lower left, the bright disk of Europa is visible. Upper right, a round dark patch marks Io’s shadow on the cloud tops.

@joseptrigo.bsky.social Sep 22, 2026, 6:47 PM

CONTRIBUTING TO THE AMAZING WORKSHOP:
"THE INTEGRATED SCIENCE OF COMETS: from laboratory studies of cometary materials to remote observations" host by @USRAedu
➡️
www.hou.usra.edu/meetings/int...
Tomorrow afternoon presenting our studies on the cometary nature of interstellar #3IATLAS 👌
#PlanetSci

@leighfletcher.bsky.social Sep 21, 2026, 5:44 PM

Everything you needed to know about #ESAJuice returning to Earth for a flyby next week! Our spacecraft is now 41% of the way through its long journey to Jupiter. #planetsci

@ita.esa.int Sep 21, 2026, 3:32 PM

I dieci strumenti scientifici di Juice saranno attivati per raccogliere dati tra il 23 settembre e il 3 ottobre. 📶

#planetsci

@science.esa.int

Illustrazione che mostra la Terra vista dallo spazio, la sonda Juice e la sua traiettoria durante il sorvolo.

@ita.esa.int Sep 21, 2026, 3:30 PM

Le due telecamere di monitoraggio a bordo di Juice 🛰️scatteranno foto durante tutto il sorvolo.

Le ultime immagini di questo sorvolo saranno scattate il 29 settembre 📆.

Rimanete sintonizzati!

#planetsci
@science.esa.int

@ita.esa.int Sep 21, 2026, 3:28 PM

Juice dell'ESA torna ancora una volta a trovarci.

Il 28 settembre, la sonda effettuerà un sorvolo della Terra, avvicinandosi a 8.640 km dal nostro pianeta. Il punto di massimo avvicinamento sarà sopra l'Oceano Indiano alle 13:45 CEST (11:45 UTC)

@science.esa.int
#planetsci

@science.esa.int Sep 21, 2026, 3:15 PM

Juice’s two onboard monitoring cameras will be snapping photos throughout the flyby so stay tuned!

Their last images of this event will be taken on 29 September.

🔭 🧪 #planetsci

@science.esa.int Sep 21, 2026, 3:15 PM

Juice’s 10 science instruments will be switched on to collect data between 23 September & 3 October.

Scientists plan to measure Earth's magnetic field and point the navigation camera towards the horizon of our own Moon to improve the accuracy of its optical navigation.

🔭 🧪 #planetsci

@science.esa.int Sep 21, 2026, 3:15 PM

This flyby will deflect the trajectory of the Juice spacecraft by about 20 degrees and increase its velocity by about 3.5 km/s.

This interaction will set Juice up for a final Earth flyby in January 2029, putting it onto the optimum path to intercept Jupiter in July 2031.

🔭 🧪 #planetsci

Infographic about Juice's Earth flyby on 28 September 2026. The graphic shows Juice's trajectory during the flyby and key dates: 17 August start of flyby navigation campaign, 23 September science instruments begin observations, 27 September 21:29 CEST – 28 September 06:09 CEST Juice is in Earth's shadow, 28 September 13:45 CEST closest approach at 8640 km, 2 October farewell images of Earth, 3 October all science instruments are switched off, 4 October final trajectory correction.

@science.esa.int Sep 21, 2026, 3:15 PM

Between 15 and 30 minutes before closest approach, Juice will pass over Australia, travelling from northeast to northwest.

With the right telescope or binocular equipment, you may be able to track it. Trajectory data can be found here 👉 www.cosmos.esa.int/web/spice/sp...

🔭 🧪 #planetsci

@science.esa.int Sep 21, 2026, 3:10 PM

Juice’s two onboard monitoring cameras will be snapping photos throughout the flyby so stay tuned!

Their last images of this event will be taken on 29 September.

🔭 🧪 #planetsci

@science.esa.int Sep 21, 2026, 3:10 PM

Juice’s 10 science instruments will be switched on to collect data between 23 September & 3 October.

Scientists plan to measure Earth's magnetic field and point the navigation camera towards the horizon of our own Moon to improve the accuracy of its optical navigation.

🔭 🧪 #planetsci

@science.esa.int Sep 21, 2026, 3:10 PM

This flyby will deflect the trajectory of the Juice spacecraft by about 20 degrees and increase its velocity by about 3.5 km/s.

This interaction will set Juice up for a final Earth flyby in January 2029, putting it onto the optimum path to intercept Jupiter in July 2031.

🔭 🧪 #planetsci

Infographic about Juice's Earth flyby on 28 September 2026. The graphic shows Juice's trajectory during the flyby and key dates: 17 August start of flyby navigation campaign, 23 September science instruments begin observations, 27 September 21:29 CEST – 28 September 06:09 CEST Juice is in Earth's shadow, 28 September 13:45 CEST closest approach at 8640 km, 2 October farewell images of Earth, 3 October all science instruments are switched off, 4 October final trajectory correction.

@science.esa.int Sep 21, 2026, 3:10 PM

Between 15 and 30 minutes before closest approach, Juice will pass over Australia, travelling from northeast to northwest.

With the right telescope or binocular equipment, you may be able to track it. Trajectory data can be found here 👉 www.cosmos.esa.int/web/spice/sp...

🔭 🧪 #planetsci

@science.esa.int Sep 21, 2026, 3:10 PM

Juice is returning to Earth, again 🛰️

On 28 September the spacecraft will fly by Earth, coming within 8640 km of our planet.

The closest approach will be over the Indian Ocean at 13:45 CEST (11:45 UTC) 👉 www.esa.int/Science_Expl...

🔭 🧪 #planetsci

Illustration showing Earth seen from space, the Juice spacecraft and its trajectory during the flyby.

@drnereide.bsky.social Sep 17, 2026, 9:34 PM

For the 1st time, an extrasolar planet has left a radio fingerprint of its own, distinct from its star’s. 🔭

That fingerprint also tells us how strong its magnetic field is.⚛️

The planet is called β Pictoris b.🧪

Illustration Credit: ESO/L. Calçada/N. Risinger (skysurvey.org)

#planetsci #astronomy

Artist’s impression (not a photograph) of the young giant planet β Pictoris b. A large, banded gas world fills the foreground, lit in warm orange-reddish and brown, with a bright young star farther back against a starry sky.
Artwork from 2014, made for the first measurement of the planet’s spin, not for the radio detection.

Source: https://www.eso.org/public/images/eso1414a/

@science.esa.int Sep 16, 2026, 9:51 AM

Summer in Europe may be coming to an end, but the Red Planet is still us giving raspberry ripple ice cream vibes in this latest image from #MarsExpress 🍦

Explore the image and find about more about this cliff of ice near Mars's south pole 👉 www.esa.int/Science_Expl...

🔭🧪
#planetsci

A purple-pink-coloured patch of Mars, which is lighter on the left and darker on the right. A dark line runs from the top centre towards the bottom right, dividing the light and dark areas. At the centre of the image is a sharp light-coloured crater. Less sharp craters are scattered over the rest of the image. At the bottom left is a bright white-blue triangular patch, it looks icy. A small scale bar at the bottom right indicates that north is to the right, and that a line approximately one tenth of the image width is 50 km long.