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AkaSci

@akasci.bsky.social

SatCom Scientist Writing occasionally about science, space missions, astronomy, planetary science, satellites, Democracy and human rights. Mostly at https://fosstodon.org/@AkaSci

797 Followers  |  788 Following  |  228 Posts  |  Joined: 09.02.2024
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AkaSci 🛰️ (@AkaSci@fosstodon.org) Attached: 1 image Tardigrades, the toughest animals in the Universe, failed to survive in simulated Martian regolith (surface material). Researchers tested tardigrades with exposure to martian regol...

Tardigrades, the toughest animals in the Universe, fail to survive in simulated Martian regolith.

However, they did much better when the regolith was washed, leaching away some of the salts and other chemicals.

Don't book that ticket yet 😜

More at fosstodon.org/@AkaSci/1161...
#PlanetSci #Science

03.03.2026 13:55 — 👍 13    🔁 0    💬 0    📌 1
Artemis III Concept of Operations (2023) including the different rockets (SLS, Starship) and vehicles (Orion, Starship HLS)
Source: https://en.wikipedia.org/wiki/Artemis_III

Artemis III Concept of Operations (2023) including the different rockets (SLS, Starship) and vehicles (Orion, Starship HLS) Source: https://en.wikipedia.org/wiki/Artemis_III

What about in-orbit refueling?
And lunar Gateway.

28.02.2026 11:10 — 👍 0    🔁 0    💬 0    📌 0
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Tales of a very clever slime mold In its quest to feed, avoid nasty substances and just generally live its life, the brainless, one-celled Physarum polycephalum performs some impressive tricks of learning and memory

The impressive skills of the brainless, unicellular Slime Mold.

"Encounters with food lead to an increase in local fluid flow within the tubes, causing greater shear force on the tube walls, which grow thinner, allowing the tubes to expand and fan out."
knowablemagazine.org/content/arti...
#Science

27.02.2026 04:43 — 👍 6    🔁 1    💬 0    📌 1
As new images are taken, Rubin Observatory’s sophisticated software automatically compares each one with a template image. The template image, built by combining Rubin's previous images of the same area in the same filter, is subtracted from the new image, leaving only the changes. Each change triggers an alert within minutes of image capture.

This compilation contains five examples of Rubin alerts for supernovae. The images were captured during commissioning with the LSST Camera. Each alert includes three “postage stamp” images — the left shows the template image, the center shows the new image, and the right shows the subtracted, or difference, image. The object of interest for a particular alert is centered in the images. In the case of the supernova alert at the bottom, the bright spots in the upper left corners of the template and new images are the center of the supernova’s host galaxy. The supernova itself — not seen in the template image — is clearly revealed in the center of the difference image.

Credit: NSF–DOE Vera C. Rubin Observatory/NOIRLab/SLAC/AURA

As new images are taken, Rubin Observatory’s sophisticated software automatically compares each one with a template image. The template image, built by combining Rubin's previous images of the same area in the same filter, is subtracted from the new image, leaving only the changes. Each change triggers an alert within minutes of image capture. This compilation contains five examples of Rubin alerts for supernovae. The images were captured during commissioning with the LSST Camera. Each alert includes three “postage stamp” images — the left shows the template image, the center shows the new image, and the right shows the subtracted, or difference, image. The object of interest for a particular alert is centered in the images. In the case of the supernova alert at the bottom, the bright spots in the upper left corners of the template and new images are the center of the supernova’s host galaxy. The supernova itself — not seen in the template image — is clearly revealed in the center of the difference image. Credit: NSF–DOE Vera C. Rubin Observatory/NOIRLab/SLAC/AURA

During a trial run on Feb 24, the Vera C. Rubin Observatory, with its 3.5° FOV and 3.2 billion pixel camera, generated 800,000 alerts, identifying new asteroids, supernovae, black holes and other changes in the night sky!

noirlab.edu/public/news/...
fosstodon.org/@AkaSci/1161...
#Astronomy

27.02.2026 02:58 — 👍 12    🔁 5    💬 0    📌 0
The European Space Agency's (ESA) Proba-2 satellite captured this ring from its viewpoint in space. Flying around Earth, the spacecraft witnessed the same solar eclipse no less than four times, including this perfect ring of fire at 11:31 Universal Time. The images were taken by the spacecraft's SWAP extreme ultraviolet imager, at a wavelength of 17.4 nanometres.

Source: https://proba2.sidc.be/Eclipse17February2026
Credit: ESA/Royal Observatory of Belgium

The European Space Agency's (ESA) Proba-2 satellite captured this ring from its viewpoint in space. Flying around Earth, the spacecraft witnessed the same solar eclipse no less than four times, including this perfect ring of fire at 11:31 Universal Time. The images were taken by the spacecraft's SWAP extreme ultraviolet imager, at a wavelength of 17.4 nanometres. Source: https://proba2.sidc.be/Eclipse17February2026 Credit: ESA/Royal Observatory of Belgium

Spectacular image of the annular solar eclipse of Feb 17, taken by the ESA Proba-2 satellite (725 km alt), at 17.4 nm wavelength, using the SWAP extreme ultraviolet imager.

From earth, the eclipse was visible only from the Antarctic region.

More at fosstodon.org/@AkaSci/1161...
#Astronomy

26.02.2026 20:17 — 👍 9    🔁 2    💬 0    📌 0
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Agents of Chaos -- what are autonomous OpenClaw agents up to? How do they interact with each other? Read our investigation of OpenClaw at
researchgate.net/publication/...
And an interactive website agentsofchaos.baulab.info
@davidbau.bsky.social @natalieshapira.bsky.social @openclaw-x.bsky.social

24.02.2026 15:04 — 👍 18    🔁 6    💬 1    📌 1

Please tell us about asteroid 23238 Ocasio-Cortez.
How did it get its name?

22.02.2026 17:42 — 👍 0    🔁 0    💬 0    📌 0
NASA Troubleshooting Artemis II Rocket Upper Stage Issue, Preparing to Roll Back - NASA NASA is taking steps to potentially roll back the Artemis II rocket and Orion spacecraft to the Vehicle Assembly Building (VAB) at the agency’s Kennedy Space

Oh no! A day after the successful wet dress rehearsal, NASA has detected a helium flow issue with the Artemis II rocket that will require a rollback to the Vehicle Assembly Building for diagnosis and repair. The March 6 launch window will likely be missed.
www.nasa.gov/blogs/missio...
#Space #NASA

21.02.2026 18:11 — 👍 2    🔁 0    💬 0    📌 0
Lawrence: Nothing has separated voters from Trump more than the Epstein ‘cover-up’
YouTube video by MS NOW Lawrence: Nothing has separated voters from Trump more than the Epstein ‘cover-up’

@akasci.bsky.social

Lawrence O’Donnell: "The most powerful crime syndicate in history - that is what we are living under now in the United States, according to Trump's hometown newspaper.

Donald #Trump publicly appears to be planning an election crime spree..

www.youtube.com/watch?v=lMHA...

20.02.2026 03:54 — 👍 10    🔁 4    💬 0    📌 0
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The Latest Covid Misinformation Star Says He Invented the Vaccines (Published 2022)

Dr. Robert Malone has been around for a while. As of 2021, Malone promoted himself as the inventor of mRNA vaccines and that he had been wronged by the medical establishment. Then with COVID, he started attacking mRNA vaccines.
www.nytimes.com/2022/04/03/t...
en.wikipedia.org/wiki/Robert_...

07.02.2026 03:33 — 👍 2    🔁 0    💬 0    📌 0
1. A massive hotspot — larger the Earth’s Lake Superior — can be seen just to the right of Io’s south pole in this annotated image taken by the JIRAM infrared imager aboard NASA’s Juno on Dec. 27, 2024, during the spacecraft’s flyby of the Jovian moon.
Credit: NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM

2. Map of IO from angle that is close to that of the images below, with the South Pole in view. And my guess for the scarred area of the eruption near Nemea Planum.
3D-map source: http://terkeptar.elte.hu/vgm/2/?show=globe&id=111&descid=219

3. Images of Io captured in 2024 by the JunoCam imager aboard NASA’s Juno show significant and visible surface changes (indicated by the arrows) near the Jovian moon’s south pole. These changes occurred between the 66th and 68th perijove, or the point during Juno’s orbit when it is closest to Jupiter.
Credit: NASA/JPL-Caltech/SwRI/MSSS Image processing by Jason Perry

1. A massive hotspot — larger the Earth’s Lake Superior — can be seen just to the right of Io’s south pole in this annotated image taken by the JIRAM infrared imager aboard NASA’s Juno on Dec. 27, 2024, during the spacecraft’s flyby of the Jovian moon. Credit: NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM 2. Map of IO from angle that is close to that of the images below, with the South Pole in view. And my guess for the scarred area of the eruption near Nemea Planum. 3D-map source: http://terkeptar.elte.hu/vgm/2/?show=globe&id=111&descid=219 3. Images of Io captured in 2024 by the JunoCam imager aboard NASA’s Juno show significant and visible surface changes (indicated by the arrows) near the Jovian moon’s south pole. These changes occurred between the 66th and 68th perijove, or the point during Juno’s orbit when it is closest to Jupiter. Credit: NASA/JPL-Caltech/SwRI/MSSS Image processing by Jason Perry

On Dec. 27, 2024, NASA’s Juno spacecraft witnessed the most intense eruption ever recorded on Io, Jupiter’s most volcanically active moon. The eruption spanned 65,000 sq km and released > 80 TW of energy.

www.jpl.nasa.gov/news/nasa-ju...
More at fosstodon.org/@AkaSci/1159...
#Astronomy

01.02.2026 14:10 — 👍 11    🔁 2    💬 0    📌 1

Also, check out the blunt assessment of "AI datacenters in space” by Prof. Matthew Buckley.
bsky.app/profile/phys...
www.physicsmatt.com/blog/2025/12...

31.01.2026 19:47 — 👍 2    🔁 0    💬 0    📌 0
Image of the first page of the filing -

SpaceX requests authority to launch and operate a constellation of satellites with unprecedented computing capacity to power advanced artificial intelligence (“AI”) models and the applications that rely on them. By directly harnessing near-constant solar power with little operating or maintenance costs, these satellites will achieve transformative cost and energy efficiency while significantly reducing the environmental impact associated with terrestrial data centers. Launching a constellation of a million satellites that operate as orbital data centers is a first step towards becoming a Kardashev II-level civilization—one that can harness the Sun’s full power—while supporting AI-driven applications for billions of people today and ensuring humanity’s multi-planetary future amongst the stars

SpaceX is designing its satellite system to accommodate the explosive growth of data demands driven by AI, machine learning, and edge  omputing, where processing needs are already beginning to outpace terrestrial capabilities. To deliver the compute capacity required for large-
scale AI inference and data center applications serving billions of users globally, SpaceX aims to deploy a system of up to one million satellites to operate within narrow orbital shells spanning up to 50 km each (leaving sufficient room to deconflict against other systems with comparable ambitions). This system will operate between 500 km and 2,000 km altitude ...

Image of the first page of the filing - SpaceX requests authority to launch and operate a constellation of satellites with unprecedented computing capacity to power advanced artificial intelligence (“AI”) models and the applications that rely on them. By directly harnessing near-constant solar power with little operating or maintenance costs, these satellites will achieve transformative cost and energy efficiency while significantly reducing the environmental impact associated with terrestrial data centers. Launching a constellation of a million satellites that operate as orbital data centers is a first step towards becoming a Kardashev II-level civilization—one that can harness the Sun’s full power—while supporting AI-driven applications for billions of people today and ensuring humanity’s multi-planetary future amongst the stars SpaceX is designing its satellite system to accommodate the explosive growth of data demands driven by AI, machine learning, and edge omputing, where processing needs are already beginning to outpace terrestrial capabilities. To deliver the compute capacity required for large- scale AI inference and data center applications serving billions of users globally, SpaceX aims to deploy a system of up to one million satellites to operate within narrow orbital shells spanning up to 50 km each (leaving sufficient room to deconflict against other systems with comparable ambitions). This system will operate between 500 km and 2,000 km altitude ...

New FCC filing by SpaceX for a constellation of million data center satellites for AI 😮

Even if it could be done, what will this do to #astronomy and #space debris?

Or is this yet another scam and grift scheme?

www.scribd.com/document/990...
More at fosstodon.org/@AkaSci/1159...

31.01.2026 19:44 — 👍 13    🔁 3    💬 4    📌 2

Typo correction - Researchers used a neural network named AnomalyMatch to search thru ~100 million images from the Hubble Legacy Archive. In 2.5 days, it found more than 1,300 anomalous objects, at least 800 previously unknown.

29.01.2026 02:26 — 👍 1    🔁 0    💬 0    📌 0
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Researchers discover hundreds of cosmic anomalies with help from AI A team of astronomers have used a new AI-assisted method to search for rare astronomical objects in the Hubble Legacy Archive. The team sifted through nearly 100 million image cutouts in just two and ...

Space Oddities!

Researchers used a neural network named AnomalyMatch to search thru ~100 million images from the Hubble Legacy Archive. In 2.5 days, it found more than anomalous 1,300 objects, more than 800 previously unknown.

esahubble.org/news/heic2603/
@cmdr-hadfield.bsky.social
#Astronomy

29.01.2026 00:05 — 👍 95    🔁 11    💬 1    📌 0
1. Pic of the SLS rocket exiting the VAB taken from inside the building.
Credit: Reid Wiseman

2. SLS on the launch pad this evening

1. Pic of the SLS rocket exiting the VAB taken from inside the building. Credit: Reid Wiseman 2. SLS on the launch pad this evening

The NASA Artemis II SLS stack was rolled out today to launch pad 39B at KSC for testing and wet rehearsals.

Launch on Feb. 6, for a 10-day journey around the Moon and back (no moon landing) with 4 astronauts.

More at fosstodon.org/@AkaSci/1158...
#Space

18.01.2026 00:15 — 👍 6    🔁 3    💬 0    📌 0
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The four paths forward for US scientists in 2026 US science is worth fighting for, but so are the science projects and scientists denied opportunities. Here are 4 paths all worth exploring.

The four paths forward for US scientists in 2026

If you're feeling hopeless about being a scientist in the United States in 2026, know that there are four good paths that can take you forward.

Which one is right for you?
bigthink.com/starts-with-...
#space #science #astro #scientists #usa

13.01.2026 17:15 — 👍 22    🔁 8    💬 1    📌 0
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NASA, SpaceX Set Target Date for Crew-11’s Return to Earth - NASA NASA and SpaceX are targeting no earlier than 5 p.m. EST, Wednesday, Jan. 14, for the undocking of the agency’s SpaceX Crew-11 mission from the International Space Station, pending weather conditions.

NASA has set a target date for the ISS Crew-11’s early return to earth, due to the medical issue with one of the crew members.
Undocking: 5 p.m. EST, Wednesday, Jan. 14.
Splashdown: 3:40 a.m. Thursday, Jan. 15, off the coast of CA.

www.nasa.gov/blogs/spaces...

10.01.2026 04:34 — 👍 3    🔁 1    💬 0    📌 0
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NASA Postpones Jan. 8 Spacewalk - NASA NASA is postponing the Thursday, Jan. 8, spacewalk outside the International Space Station. The agency is monitoring a medical concern with a crew member that

NASA is postponing tomorrow's scheduled ISS spacewalk because of "a medical concern" with one astronaut. www.nasa.gov/blogs/spaces...

07.01.2026 22:30 — 👍 15    🔁 5    💬 3    📌 0
Post image Post image Post image

Chang'e-3 lander on the Moon just turned on again 📡〰️calling home and in command lock with groundstation! Sun's elevation at Chang'e-3 landing site in Mare Imbrium is 20°. Landing date was 14th December 2013. #HNY2026

31.12.2025 13:28 — 👍 17    🔁 5    💬 1    📌 1
Barry Webb's photograph of glistening Comatricha nigra slime moulds titled "Glistening Slime Mould".
It won the people's choice in the macro category of the British Photography Awards 2025

Photographed on an old, rotting fence post in my back garden. I used a spray bottle to create a wet foreground to add a reflection and give the image an extra dimension. These fruiting bodies are around 2.5mm tall. 56 images were focus stacked to create the final image. Camera settings: 2.0 sec, f3.2, ISO 400

Source: https://www.britishphotographyawards.org/2025-shortlist/shortlist/macro/glistening-slime-mould/d4795926-9090-4f80-b07b-e7a743ec9459

Barry Webb's photograph of glistening Comatricha nigra slime moulds titled "Glistening Slime Mould". It won the people's choice in the macro category of the British Photography Awards 2025 Photographed on an old, rotting fence post in my back garden. I used a spray bottle to create a wet foreground to add a reflection and give the image an extra dimension. These fruiting bodies are around 2.5mm tall. 56 images were focus stacked to create the final image. Camera settings: 2.0 sec, f3.2, ISO 400 Source: https://www.britishphotographyawards.org/2025-shortlist/shortlist/macro/glistening-slime-mould/d4795926-9090-4f80-b07b-e7a743ec9459

Check out these beautiful macro photographs of Slime Moulds by Barry Webb at www.barrywebbimages.co.uk/Images/Macro...

Additional links -
Fungi: www.barrywebbimages.co.uk/Images/Macro...
Instagram: www.instagram.com/barrywebbima...
Slime mould info: en.wikipedia.org/wiki/Slime_mo
#Nature

30.12.2025 14:17 — 👍 42    🔁 16    💬 0    📌 1

Trump: The FBI Informant Who Did Not Bark. A key email from Epstein’s estate, in combination with statements by Trump ally House Speaker Mike Johnson, shows it is highly likely that Trump was an FBI informant in the sex abuse investigation into Epstein. bit.ly/44OKNct

28.12.2025 16:29 — 👍 3    🔁 3    💬 0    📌 2
1. This artist’s concept shows what the exoplanet called PSR J2322-2650b (left) may look like as it orbits a rapidly spinning neutron star called a pulsar (right). Gravitational forces from the much heavier pulsar are pulling the Jupiter-mass world into a bizarre lemon shape.
Illustration: NASA, ESA, CSA, Ralf Crawford (STScI)

2. This artist’s concept shows what the exoplanet PSR J2322-2650b may look like. Gravitational forces from the much heavier pulsar it orbits are pulling the Jupiter-mass world into this bizarre lemon shape.
Illustration: NASA, ESA, CSA, Ralf Crawford (STScI)

Source: https://science.nasa.gov/missions/webb/nasas-webb-observes-exoplanet-whose-composition-defies-explanation/

1. This artist’s concept shows what the exoplanet called PSR J2322-2650b (left) may look like as it orbits a rapidly spinning neutron star called a pulsar (right). Gravitational forces from the much heavier pulsar are pulling the Jupiter-mass world into a bizarre lemon shape. Illustration: NASA, ESA, CSA, Ralf Crawford (STScI) 2. This artist’s concept shows what the exoplanet PSR J2322-2650b may look like. Gravitational forces from the much heavier pulsar it orbits are pulling the Jupiter-mass world into this bizarre lemon shape. Illustration: NASA, ESA, CSA, Ralf Crawford (STScI) Source: https://science.nasa.gov/missions/webb/nasas-webb-observes-exoplanet-whose-composition-defies-explanation/

This is lemon-shaped exoplanet PSR J2322-2650b orbiting a pulsar every 7.75h.

It's atmosphere contains He, C2 and C3, but little H, O or N.

The pulsar contains 1.4 Suns crushed into a 10-20 km sphere, rotates every 3.33 ms and deforms the planet.
More at fosstodon.org/@AkaSci/1157...
#Astronomy

28.12.2025 01:54 — 👍 19    🔁 6    💬 0    📌 0
1. This artist’s concept shows what the exoplanet called PSR J2322-2650b (left) may look like as it orbits a rapidly spinning neutron star called a pulsar (right). Gravitational forces from the much heavier pulsar are pulling the Jupiter-mass world into a bizarre lemon shape.
Illustration: NASA, ESA, CSA, Ralf Crawford (STScI)

2. This artist’s concept shows what the exoplanet PSR J2322-2650b may look like. Gravitational forces from the much heavier pulsar it orbits are pulling the Jupiter-mass world into this bizarre lemon shape.
Illustration: NASA, ESA, CSA, Ralf Crawford (STScI)

Source: https://science.nasa.gov/missions/webb/nasas-webb-observes-exoplanet-whose-composition-defies-explanation/

1. This artist’s concept shows what the exoplanet called PSR J2322-2650b (left) may look like as it orbits a rapidly spinning neutron star called a pulsar (right). Gravitational forces from the much heavier pulsar are pulling the Jupiter-mass world into a bizarre lemon shape. Illustration: NASA, ESA, CSA, Ralf Crawford (STScI) 2. This artist’s concept shows what the exoplanet PSR J2322-2650b may look like. Gravitational forces from the much heavier pulsar it orbits are pulling the Jupiter-mass world into this bizarre lemon shape. Illustration: NASA, ESA, CSA, Ralf Crawford (STScI) Source: https://science.nasa.gov/missions/webb/nasas-webb-observes-exoplanet-whose-composition-defies-explanation/

This is lemon-shaped exoplanet PSR J2322-2650b orbiting a pulsar every 7.75h.

It's atmosphere contains He, C2 and C3, but little H, O or N.

The pulsar contains 1.4 Suns crushed into a 10-20 km sphere, rotates every 3.33 ms and deforms the planet.
More at fosstodon.org/@AkaSci/1157...
#Astronomy

28.12.2025 01:54 — 👍 19    🔁 6    💬 0    📌 0

Likely, growing in mass, gobbling up some of the material in its path.

27.12.2025 13:26 — 👍 1    🔁 0    💬 0    📌 0

If Trump was 100% guilty before any of the Epstein files were released, now he’s closer to 600%, 700%, even 800% guilty.

MAGA math works both ways.

27.12.2025 05:55 — 👍 4871    🔁 1006    💬 118    📌 41

Join the funny and clever threads on James Bond.
🤣
bsky.app/profile/tren...

27.12.2025 06:02 — 👍 0    🔁 0    💬 0    📌 0
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AkaSci 🛰️ (@AkaSci@fosstodon.org) Attached: 1 image One possible explanation for the Runaway SMBH - First, 2 galaxies merge creating a binary SMBH (1,2). A 3rd galaxy comes in (3), its SMBH sinks to the center of the merger (>1 Gyr...

See fosstodon.org/@AkaSci/1157...

27.12.2025 05:14 — 👍 0    🔁 0    💬 0    📌 0
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AkaSci 🛰️ (@AkaSci@fosstodon.org) Attached: 1 image The curious linear feature, containing a 200,000-light-year-long chain of young blue stars, was first observed by the researchers using the Hubble Space Telescope in 2023. The fron...

Please note that the thread at fosstodon.org/@AkaSci/1157... has lot more info on the Runaway Supermassive Black Hole and links to papers.

27.12.2025 05:12 — 👍 6    🔁 1    💬 0    📌 0

Yes, RBH-1 was discovered in 2023 using Hubble by the same researchers and presented in the paper iopscience.iop.org/article/10.3...

The artistic impression is from that time.

Many articles on the new findings use artistic impressions incorrectly depicting the host galaxy as the Infinity galaxy.

27.12.2025 05:07 — 👍 1    🔁 1    💬 0    📌 0