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arcteme
@arcteme.com
82 followers 1.2K following 5 posts
Main interests are science, nature and the universe.
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andrealuck.bsky.social
1/n

2 NEW epic images of Phobos over Mars just released by @esa.int Mars Express

This view is especially striking, with Phobos between the Tharsis volcanoes and Noctis Labyrinthus–Valles Marineris

Full resolution 300MP(!) & info on: flic.kr/p/2rMW4so
Credit: ESA/DLR/FUBerlin/AndreaLuck CC BY 🧪🔭
A wide view of the planet Mars fills the frame, shown as a curved, rust-colored world against black space. The bottom edge fades into darkness, marking the planet’s night side, while the upper portion is brightly lit by sunlight. Near the right side are three large, round volcanic mountains of the Tharsis region, each with a wide circular base and a darker central caldera, resembling shallow craters pressed into the surface. North of these volcanoes, stretching almost vertically across the upper right half of the planet, lies Noctis Labyrinthus and Valles Marineris: an immense system of deep canyons and fractured terrain that appears as pale, branching scars and cracks, partly softened by hazy, cloud-like atmospheric features. Near the center of the image, positioned between the volcanoes and the canyon system, a small dark oval appears against Mars’s surface. This is Phobos, one of Mars’s satellites. Its tiny size stands out sharply against the vast scale of the planet below.
December 21, 2025 at 2:12 PM
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taistohakala.bsky.social
Jouluna teemme paljon hankintoja, joskus kovallakin kiireellä. Samalla saatamme ottaa turvallisuusriskejä. Turvallisuus ja kemikaalivirasto valvoo osaltaan tuoteturvallisuutta ja julkaisee tietoa vaarallisista tuotteista, jotka löydät täältä.👇
vaarallisettuotteet.fi/etusivu
#joulu #tuoteturvallisuus
December 7, 2025 at 4:55 AM
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sarahkirchberger.bsky.social
On the eve of the Finnish Independence Day, a 🧵 to commemorate my great-grandfather Wilho Suurla-Sobolew's small contribution to the Finnish independence movement.

Like many Karelians, Wilho (*2.4.1883) was born with a Russian surname -Sobolew - and in 1933 changed it to a Finnish one, Suurla.

1/
December 5, 2025 at 9:50 PM
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dieworkwear.bsky.social
wtf is a FIFA peace prize? that's like being an NFL laureate in physics
December 5, 2025 at 7:21 PM
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vintersol.bsky.social
It's a classic Russian strategy. The Tsar is credited for everything good and everything bad is blamed on the people below him.
en.wikipedia.org/wiki/Good_Ts...
Good Tsar, bad Boyars - Wikipedia
en.wikipedia.org
December 3, 2025 at 4:56 PM
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socialistdogmom.bsky.social
we have to go back. to warn them.
November 28, 2025 at 2:49 AM
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kajakallas.bsky.social
November 22, 2025 at 9:47 AM
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suviijas.bsky.social
Taide | Suvilahteen ilmestyi taiteilijan näkemys Timo Vornasen Ihku-illasta
www.hs.fi/helsinki/art...
Taide | Suvilahteen ilmestyi taiteilijan näkemys Timo Vornasen Ihku-illasta
Teos hakee vaikutteita Doom (1993) videopelistä.
www.hs.fi
November 15, 2025 at 1:24 PM
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tizzywoman.bsky.social
After leukemia treatments failed, Alyssa, at age 13, was told she would die. Then, doctors tried an experimental gene-edited therapy. She became the 1st human to try the treatment made possible by U.S. federal funding. Now 16, she’s cancer-free. RESEARCH SAVES LIVES
November 10, 2025 at 11:13 PM
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antongerashchenko.bsky.social
Russia presented its human-like AI robot. It fell down as it walked onto the stage.
November 11, 2025 at 6:19 PM
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jaritaponen.bsky.social
”Kansallisen turvallisuuden asioita ei pitäisi tehdä julkisessa pilvipalvelussa”

Tätä ei tarvitse sen enempää perustella.

yle.fi/a/74-20191502
November 6, 2025 at 5:55 PM
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taavihorila.bsky.social
1) itse vaalit eivät vaarannu koska edelleen kynällä ja paperilla touhutaan, mutta
2) vaalien uskottavuus ja tulosraportoinnin uskottavuus kärsii.
3) Kustannussäästöt ovat riskeihin nähden pienet.
4) Suomen valtio on Tietoevrylle merkittävä asiakas, Amazonille ei

yle.fi/a/74-20191502
Suomen vaalidata siirtyy Amazonin pilveen – USA:n vaalivilppiepäilyjä tutkinut asiantuntija varoittaa riskeistä
Ensimmäistä kertaa vaaleissa ehdokas- ja äänestäjätiedot sekä tuloslaskenta siirtyvät Suomen rajojen ulkopuolelle. Tutkija ei käyttäisi pilvipalvelua kansallisen turvallisuuden asioissa.
yle.fi
November 6, 2025 at 12:51 PM
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laurilavanti.fi
Kyse ei siis ole itse äänestämisestä, se säilyy paperisena kuten pitääkin, vaan esimerkiksi äänten laskennasta ja äänestäjä- ja ehdokasrekistereistä

Siirtoa perustellaan sillä, että se säästää rahaa

Vaalien integriteetti, luotettavuus ja tietoturva ovat väärä paikka säästää rahaa

2/
November 6, 2025 at 12:17 PM
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altim.net
Tämän pitäisi olla laitonta. T. pilvipalveluntarjoaja ja datakeskusoperaattori yle.fi/a/74-20191502
Seuraavat eduskuntavaalit pyörivät amerikkalaisen Amazonin palvelimilla – äänet annetaan edelleen paperilla
Ensimmäistä kertaa vaaleissa ehdokas- ja äänestäjätiedot sekä tuloslaskenta siirtyvät Suomen rajojen ulkopuolelle. Tutkija ei käyttäisi pilvipalvelua kansallisen turvallisuuden asioissa.
yle.fi
November 6, 2025 at 8:53 AM
Reposted by arcteme
samillingworth.com
🧠 Alzheimer’s reversed in mice

A new study found that injecting nanoparticles can 'remind' the blood–brain barrier to function properly again, restoring normal brain activity in mice. Human trials could follow within years.

🔗 www.nature.com/articles/s41...

#SciComm #Alzheimers 🧪
Rapid amyloid-β clearance and cognitive recovery through multivalent modulation of blood–brain barrier transport - Signal Transduction and Targeted Therapy
Signal Transduction and Targeted Therapy - Rapid amyloid-β clearance and cognitive recovery through multivalent modulation of blood–brain barrier transport
www.nature.com
October 8, 2025 at 4:11 AM
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sensoryecology.bsky.social
“Deep in the Peruvian Amazon, a spider is at work building an elaborate, fake decoy of itself. In its web, it busily goes to working crafting its doppelgänger out of leaves, debris and dead prey insects…”

#scicomm
#sensoryecology
#falsesignal

www.smithsonianmag.com/smart-news/s...
🧪 🕷️
Spider Builds Fake Spider Decoy
The new spider, thought to be a member of the genus Cyclosa, might build these decoys as part of a defense mechanism to confuse or distract predators
www.smithsonianmag.com
July 27, 2025 at 3:14 AM
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lauraolin.bsky.social
Post from @suchnerve: Printing out a word document that says “I am a person” and then being like omg my printer is sentient now
July 21, 2025 at 2:12 AM
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lauraphillips.bsky.social
All seven Sibelius symphonies, ranked | Classical Music
Sibelius's seven symphonies trace a musical journey like no other. We've tried the impossible - and ranked these seven emotive masterpieces
www.classical-music.com
July 14, 2025 at 6:10 PM
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andrealuck.bsky.social
1/n 🧵
Just released: NEW images of Phobos over Mars by @esa.int Mars Express 🔭🧪

This view shows Phobos above Olympus Mons!

Full-size (130MP) image & details: flic.kr/p/2rggHKy
Credit: ESA/DLR/FU Berlin/Andrea Luck CC BY

Captured on May 14, 2025 | Image ID: HQ967
Raw data from: psa.esa.int
A high-resolution color image of Mars with the small, dark, potato shaped satellite Phobos, seen in sharp contrast as it passes over the massive volcano Olympus Mons. Phobos appears irregular and shadowed against the softly rust colored Martian surface. In the distance, two other volcanic features Ascraeus Mons (upper right) and the flatter Alba Mons (upper left) are visible. Wisps of light clouds and the blackness of space frame the planet’s curved horizon.
July 12, 2025 at 8:33 PM
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annukkameronen.bsky.social
Upea uutinen!

Entinen Ämmässuon kaatopaikka on muutettu valtavaksi kukkivaksi niityksi, joka tarjoaa tärkeän elinympäristön uhanalaisille lajeille.

Rumastakin voi tehdä kaunista - ja hyödyllistä 👏
Ympäristö | Jätevuori Espoossa sai uuden elämän hyönteisten paratiisina
Entinen Ämmässuon kaatopaikka on muutettu valtavaksi kukkivaksi niityksi, joka tarjoaa tärkeän elinympäristön uhanalaisille lajeille.
www.hs.fi
July 9, 2025 at 5:52 PM
Reposted by arcteme
operations.esa.int
Astronomers may have just discovered the third interstellar object passing through the Solar System!

ESA’s Planetary Defenders are observing the object, provisionally known as #A11pl3Z, right now using telescopes around the world.
July 2, 2025 at 8:23 AM
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asteroiddave.bsky.social
FACT THREAD on New Interstellar Object #A11pl3Z

This story unfolded pretty fast yesterday for a few reasons. The object was discovered on July 1st UTC by the Asteroid Terrestrial-impact Last Alert System, or ATLAS team. A #NASA funded survey at the University of Hawaii. atlas.fallingstar.com 🔭🧪
Orbit diagram of interstellar object A11pl3Z
July 2, 2025 at 3:27 PM
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mpsgoettingen.bsky.social
The #PLATO mission has reached an important milestone: The optical bench with all 26 cameras as been assembled. Read more here: www.mps.mpg.de/plato-fully-... #PLATODataCenter #exoplanet @uni-goettingen.de
July 2, 2025 at 9:53 AM