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p.s @p-s-v.bsky.social · 3h

Auroras and ful moon
Taken by Frederic Hore on October 7, 2025 @ Churchill, Manitoba, Canada
spaceweathergallery2.com/indiv_upload...

Justice 🇺🇦 @loveon9.bsky.social · 19h

We are definitely being hit by a CME! Density: 64.63 protons/cm3! (25 is high)

CHANCE OF STORMS: NOAA forecasters say that geomagnetic storms are likely on Oct 8th... CME is expected to hit Earth's magnetic field.

Auroras and full moon
Frederic Hore, Oct 7, 2025, Manitoba, Canada
Spaceweather.com

Reposted by p.s

András Zlinszky @azlinszky.bsky.social · 1d

Borkum, Germany, Sentinel-2 Magic Eyes custom script link.dataspace.copernicus.eu/t8c8 Friesische Insel on satellite imagery will never be not cool.

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Reposted by p.s

Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 4h

I also made an animation of the rotation of the planet. This also uses the F162M filter.

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Reposted by p.s

Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 4h

Planet #Uranus 🪐 and inner moons with #JWST NIRCam 🔭 #planetsci Observation from this Monday (lol moon🌕day).

Filters: F150W2; F162M
Date: 2025-10-06 between 02:15:43 UT and 04:46:47 UT

Program: www.stsci.edu/jwst-program...

Uranus with rings and small elongated dots (tracks) around it.

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p.s @p-s-v.bsky.social · 17h

ExoMars TGO catches dust devils on Mars

CREDIT
ESA/TGO/CaSSIS

Dust devils are whirlwinds of dust that are blown across Mars’s surface. They are one way that dust gets lifted into the Red Planet’s thin atmosphere and transported from one place to another.

The Colour and Stereo Surface Imaging System (CaSSIS) on board ESA’s ExoMars Trace Gas Orbiter (TGO) captured these three dust devils tracking across the martian surface on 8 November 2021. 1039 of these tornadoes were found as part of new research published in Science Advances, which used 20 years of images from European Mars orbiters to trace strong surface winds on the Red Planet.

CREDIT
ESA/TGO/CaSSIS

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p.s @p-s-v.bsky.social · 17h

Paper
www.science.org/doi/10.1126/...

ESA science
x.com/esascience/s...

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p.s @p-s-v.bsky.social · 17h

Video:
Mars Express sees a dust devil dancing across Mars

Dust devils are whirlwinds of dust that are blown across Mars’s surface. They are one way that dust gets lifted into the Red Planet’s thin atmosphere and transported from one place to another.

CREDIT
ESA/DLR/FU Berlin

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p.s @p-s-v.bsky.social · 17h

Researchers combed through images from ESA's #MarsExpress & #ExoMars spacecraft to find 1039 swirling dust devils 🌪️

Using these dust devils to track raging winds on Mars, their findings include that the strongest winds blow much faster than we thought!

More
www.esa.int/Science_Expl...

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Reposted by p.s

Corey S. Powell @coreyspowell.bsky.social · 18h

What's out there in the universe? We don't know until we look.

The COWLS project scanned 42,000 galaxies and found hundreds of previously unknown gravitational lenses -- places where the pull of massive galaxies has warped space & bent starlight into arcs and rings. 🧪🔭

esawebb.org/images/potm2...

This ESA/Webb Picture of the Month shows eight stunning examples of gravitational lensing. Gravitational lensing, which was first predicted by Einstein, occurs because massive objects like galaxies and clusters of galaxies dramatically warp the fabric of spacetime. When a massive foreground object lines up just so with a background galaxy, the light from the background galaxy bends as it navigates the warped spacetime on its way to our telescopes.

Depending on how perfect the alignment is, the light from the background galaxy can be bent into an arc, a circle (a phenomenon called an ‘Einstein ring’) or even split into multiple images.

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p.s @p-s-v.bsky.social · 18h

More
news.northwestern.edu/stories/2025...

Paper
iopscience.iop.org/article/10.3...

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p.s @p-s-v.bsky.social · 18h

Webb Telescope unveils doomed ⭐ hidden in dust

Northwestern University-led team of astronomers has captured most detailed glimpse yet of a doomed ⭐ before it exploded.

Study marks first time JWST identified a supernova’s source star and first time supernova was imaged in mid-infrared wavelengths

The main image at left shows a combined Webb and Hubble view of spiral galaxy NGC 1637, with the region of interest in the top right. The remaining three panels show a detailed view of a red supergiant star before and after it exploded. The star is not visible in the Hubble image before the explosion, but appears in the Webb image. The July 2025 view from Hubble shows the glowing aftermath of the explosion.

Credit
NASA, ESA, CSA, STScI, Charles Kilpatrick (Northwestern), Aswin Suresh (Northwestern)

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Reposted by p.s

Thomas Carpentier @thocarp.bsky.social · 1d

Last night, the JWST observed Uranus for calibration. Even like that the result is awesome, so here you go with my processed image of that observation! 🔭

HD: flic.kr/p/2ry78y3

Observation of Uranus by the JWST. The planet itself appears mostly blue, but the pole, a big patch, is white. Some storms can also be spotted near the pole. The rings of the planet can be spotted in infrared light, so they appear in that image (in orange color).

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Reposted by p.s

Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 1d

The Cosmic Eye is a gravitational lens discovered in 2007. 🔭

My #JWST NIRCam image processing (filters F115W, F150W, F182M)

program: www.stsci.edu/jwst-program...

A lens with two arcs and a lens shaped galaxy in the middle.

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Reposted by p.s

Vincent Ledvina @vincentledvina.bsky.social · 1d

Here is the scale of the coronal hole moving to face Earth in the coming days compared with the size of Earth itself. It's a decently-sized coronal hole, but not exceptionally large by any means. Still, it may spark minor to moderate geomagnetic storming this week! Stay tuned...

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p.s @p-s-v.bsky.social · 1d

Slow motion: The solar panels and the flashes...

p.s @p-s-v.bsky.social · 1d

Starlink satellite "train" from orbit!

By Don Pettit
x.com/astro_Pettit...

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p.s @p-s-v.bsky.social · 1d

The Sun in September 2025

From helioviewer.org

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p.s @p-s-v.bsky.social · 1d

The "light" at left it's from edit or actual light? As I see it, it's like "sunset or sunrise"?

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Reposted by p.s

kosmi.bsky.social @kosmi.bsky.social · 1d

Penguin colony [ No. 26 ].

Image taken by Sentinel-2 on Sep. 29, 2025.

-77.15, -157.61

🐧🐧🐧

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Reposted by p.s

Seán Doran @theseaning.bsky.social · 1d

'Satellite Swarm Zoom'

A star trail image made with a time-lapse image sequence photographed by Jonny Kim from ISS. Each image was restored, remastered then retimed using frame interpolation for a short film. These new frames allowed for a simulated long exposure photograph.

Stars and satellites glowing in long exposure streaks of light as ISS orbits Earth.

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Reposted by p.s

ESA Space Science @science.esa.int · 2d

First images of comet #3I/ATLAS from Europe's Mars orbiters 😍

Observing the comet from 30 million km away, #ExoMars reveals the halo of gas and dust surrounding the comet's nucleus.

Read more 👉 www.esa.int/Science_Expl...
🔭🧪

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Reposted by p.s

kosmi.bsky.social @kosmi.bsky.social · Jan 26

Small part of Antarctica.

Image taken by Sentinel-2 on Nov. 1, 2024.

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Reposted by p.s

kosmi.bsky.social @kosmi.bsky.social · 3d

Small part of Antarctica.

Image taken by Sentinel-2 on Oct 1, 2025.

-69.84, 75.56

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Reposted by p.s

Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 3d

Some detail of the lenses in the #galaxy cluster PLCKESZ G004.5-19.5 (discovered by @esa.int PLANCK mission).

#JWST NIRCam image (filters F115W, F150W, F200W) Large image at the top has a large reflected light artifact (rainbow pattern). #gravitationallensing

program: www.stsci.edu/jwst-program...

Details of some of the lenses. Top shows two large lenses and bottom shows two individual images with one lens each.

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p.s @p-s-v.bsky.social · 2d

www.instagram.com/p/DPby3XHAnq...

www.facebook.com/photo?fbid=1...

Daniel Pomarède @pomarede.bsky.social · 3d

#APOD Astronomy Picture of the Day

The Changing Ion Tail of Comet Lemmon

Credit: Victor Sabet & Julien De Winter
www.star.ucl.ac.uk/~apod/apod/a... 🧪🔭

Five shots side-by-side capturing Comet Lemmon at different times, illustrating how a comet tail might change. The ion tail of Comet C/2025 A6 (Lemmon) has been changing markedly, as detailed in the featured image sequenced over five days between September 25 and October 3 (left to right) from Texas, USA. On some days, the comet's ion tail was relatively more complex than other days. Reasons for tail changes include the rate of ejection of material from the comet's nucleus, the strength and complexity of the passing solar wind, and the rotation rate of the comet. Sometimes, over the course of a week, apparent differences even result from a change of perspective from the Earth. In general, a comet's ion tail will point away from the Sun, as gas expelled is pushed out by the Sun's wind. Comet Lemmon is still inbound and brightening, passing nearest the Earth on October 21 and nearest the Sun on November 8.