p.s

"Earth "setting" beyond the Moon's horizon, captured on large-format film by the Soviet Zond-8 spacecraft during a lunar fly-around on October 24, 1970"
Jason Major
x.com/JPMajor/stat...

Star cluster surrounds wayward black hole in the cannibal galaxy ESO 243-49. Credit: NASA, ESA, and S. Farrell (University of Sydney, Australia and University of Leicester, UK)

ESA/Hubble (@esa.int) images (Feb 15, 2012)

In ESO 243-49, an intermediate-mass black hole, weighing 20,000 Suns, resides above the galactic plane, likely from a cannibalized dwarf galaxy, with a cluster of hot young stars nearby.

esahubble.org/images/heic1203a/

Cropped version

More A6 Lemmon comet data from October 4th showing some tail separation. This is a collaboration with Chuck’s Astrophotography with Chuck capturing the data with his 8” RASA and then processed by me using Pixinsight.

Comet C/2025 A6 Lemmon

📸Peter Butler
app.astrobin.com/i/mn3n52

Telescope
Celestron RASA 8"
Camera
ZWO ASI533MC Pro
Mount
Sky-Watcher EQ6-R Pro

"Comet A6 Lemmon captured on the 15th of October. It is noticeably brighter now (peak brightness should be around November 1st). This is a collaboration with Chuck’s Astrophotography with Chuck capturing the data with his 8” RASA/ASI533MC Pro and then processed by me using Pixinsight."

Comet C/2025 A6 Lemmon

📸Peter Butler
app.astrobin.com/i/d1l6uz

Equipment
Telescope
Celestron RASA 8"
📸ZWO ASI533MC Pro
Mount: Sky-Watcher EQ6-R Pro

📷 Canon EOS R + Samyang 135mm at f/2.0 📷 28 × 40s (☄️), 3 × 30s (foreground) 🔭 Sky-Watcher Star Adventurer

☄️C/2025 A6 Lemmon shortly after sunset

Long-period☄️approaching perihelion, steadily increasing in brightness. Its ion tail is long, dynamic,&shows noticeable structural variations
The image taken with 135 mm lens —☄️doesn’t fit in single frame
📸Lukasz Remkowicz
www.instagram.com/lremkowicz/p...

"This approach will get us to a future where satellite inspection is truly on-demand. You tell us you want an image of your satellite and we deliver imagery and analysis when you need them.

Image of the ISS captured with our partner
@BlackSky_Inc "
x.com/heospace/sta...

"That's why HEO focuses on high-frequency Non-Earth Imaging. Our technology is built for speed, scale, and adaptability, operating across multiple orbits with diverse satellite providers to deliver more coverage, more data, and faster insights into thousands of satellites."

"Resolution alone won't deliver what's needed. True understanding comes from observing satellites frequently, from multiple angles and orbits, so you can see how they behave, respond to their environment, and what they're capable of across time and geography."

"We’ve captured one of our best images of the SpaceStation yet.
The number of satellites in orbit is set to increase tenfold in next decade. At the same time, space-to-space threats are rising and the need to inspect and maintain satellites is accelerating faster than anyone expected."
heospace on X

data: NGC-2024, released: 2024-03-05, processed: C.Blanchard

The Flame Nebula in the realm of Halloween.

🔭 JWST Program 1190 - Embedded Cluster Survey: www.stsci.edu/jwst-program...

Data: NGC-2024, released: 2024-03-05
NASA, ESA, CSA, STSci/ #JWST NIRCam 444, 360, 182

Time-lapse of comet Lemmon from ISS
(the comet is at the 3s at the end)

📸 👨‍🚀油井 亀美也　Kimiya.Yui
x.com/Astro_Kimiya...

☄️ C/2025 A6 Lemmon setting behind Stonehenge on Tuesday

Sky 21 x 60s F2 iso 320 tracked
Foreground 1 x 80s F2 iso 400
Canon R5 - Rokinon 135mm

📸Stonehenge Dronescapes
www.facebook.com/photo/?fbid=...

Filters: Antlia LRGB Ha OIII

Telescope: Rokinon 135mm

‎‏Mount: CEM-40

Bortal class 5/6

Location: Kuwait

Date of capture

18/10/2025​

☄️C/2025 R2 (SWAN),as it appeared to pass near the core of Milky Way

☄️green glow is caused by diatomic carbon molecules (C₂) released from its nucleus, which fluoresce when illuminated by sunlight,main reason behind☄️distinct emerald hue

📸 ZWO 533 mm
📸 Abdullah Alharbi
www.flickr.com/photos/19456...

"Comet Lemmon captured over the observatory the other night!

From Bray Falls:
To save you guys disappointment and effort, this comet does not look like this naked eye, even from dark skies. Lots of long exposures and stacking were used for this image!"

📸 Bray Falls
x.com/astrofalls/s...

"Comet A6 Lemmon, taken morning of October 14th. I used a 12 inch telescope (1500mm focal length) and LRGB filters. 40 x 1 min subs for Luminance and 10 x 1 min subs each for RGB."

📸Debra Ceravolo
www.facebook.com/groups/56439...

Huge plasma eruption on the other side of☀️
23.10.25
www.ssec.wisc.edu/data/geo/#/a...

Watch Earth’s newest quasi-moon in motion. 🌍🌀

The new paper “Meet Arjuna 2025 PN7” confirms #asteroid 2025 PN7 is trapped in a quasi-satellite orbit, looping around Earth (in a rotating frame) from the 1960s to the 2080s.

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

😊🪄

Windy day in Antarctica ❄️💨

Image taken by Sentinel-2 on Oct. 3, 2025.

www.universetoday.com/articles/her...

gizmodo.com/nasas-jupite...

The concept, described in arXiv:2508.15768v1, could reveal vital clues about the composition of primordial ices and the origin of organic compounds across the galaxy.
Erika
x.com/ExploreCosmo...

During that period,☄️will heat up& release gas &dust,creating bright tail that the probe could sample as it passes through.Without altering its main trajectory,Clipper could collect&analyze particles from another star system,offering a unique chance to study interstellar material directly first time

Hubble captured this image of the interstellar comet 3I/ATLAS on July 21, 2025, when the comet was 277 million miles from Earth. Hubble shows that the comet has a teardrop-shaped cocoon of dust coming off its solid, icy nucleus. Image: NASA, ESA, David Jewitt (UCLA); Image Processing: Joseph DePasquale (STScI) https://science.nasa.gov/solar-system/comets/3i-atlas/

NASA is assessing possibility of using Europa Clipper, originally designed to study Jupiter’s moon Europa, to intercept interstellar comet 3I/ATLAS when it approaches☀️between late Oct & early Nov 2025
arxiv.org/abs/2508.157...

This could indicate a need for a revision of our current best model of the universe, referred to as the Lambda-CDM model.

But the new analysis reinforces that the Lambda-CDM model remains a good description of what we see around us.

Previously, studies using different techniques had suggested there might be cracks in our understanding of these laws. In particular, there were hints that universe may have had more structure in the past compared to the model prediction from data today.

These clusters are some of the largest known objects in the universe — and they can help scientists test theories of how the universe first formed and the rules that govern it today

A new study catalogues the universe by mapping huge clusters of galaxies—some of the largest known objects in the universe—offering new insight into how the universe first formed and the rules that govern it today.Image courtesy of the Dark Energy Survey

Scientists published new survey leveraging 6y of data from Dark Energy Survey, observed from Chile, to map largest structures in universe: massive clusters of galaxies

UChicago-led study offers new way to probe cosmic laws

news.uchicago.edu/story/scient...
Paper
arxiv.org/abs/2503.13631

NASA estimates: The Universe's History.
science.nasa.gov/universe/ove...