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ututuy.org
Geophysicist | Astrophysicist at the Royal Observatory of Belgium. Fluid Dynamics of Rotation | Helio/Asteroseismology | Planetary Fluid Cores. Mostly pics of clouds and timelapses. All media by me. He/him.
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The sunspot group AR4006 rotating into view. The texture you see is a consequence of strong convective turbulence in the Sun's photosphere. 🧪 🔭 ⚛️ #astrophotography

This is how you can fight back. Hurt the companies that support fascism in the wallet.

Where are the Democrats but also Where are the churches Where are the celebrities Where are the NGOs Where are the Universities Where are professional groups like AMA Where are the athletes Where are the unions What people/groups do and don’t do for next month determines our collective future

This is not a window

⚒️ Long but important quote from this fascinating article on ‘Political Geology’ - our field has a dark history many of us don’t like to reckon with. HT to @arnkeeling.bsky.social https://miningbeyondhotair.org/2025/02/05/what-is-political-geology/

Exciting news! I just saved thousands of dollars a month from my bills by not paying my utilities, rent, groceries, or car payment. I can’t wait to see how this turns out for me, I’m learning so much about saving from DOGE!

A short story Me: looks around “wtf” Around: THE FUCK Me: WTF I want out Me, calmly: “Exit game” [Crickets, then THE FUCK] Me: “EXIT GAAAME!” Around: THE FUCK, THE FUCK Me: FUUUUUUUUUCK!

Wrote about the morally vacuous, strategically unsound (and also wrong!) anti-“woke”diagnosis everyone’s still sticking with, even in the midst of civil rights apocalypse.

I want to see the American Geophysical Union (AGU) continue its awesome work on justice, equity, diversity, and inclusion. This thread is a call to AGU and AGU members. 1/

Proba-3 is a highly under-publicized new space mission. Two spacecraft will fly in formation to create solar eclipses on demand. The same tech could eventually lead to huge, virtual space observatories & telescopes that can bring other Earths into view. 🧪🔭 www.esa.int/Enabling_Sup...

🔬How did artists and scientific practitioners visualize their work in the early modern period? That’s the main question behind the online exhibition of rare books curated by @sietskefransen.bsky.social, @ariellaminden.bsky.social and Leendert van der Miesen. 🔗https://rarebooks.biblhertz.it

granting the premise of this, how would you know what questions to ask?

Yeah I would like to see the quantitative evidence of this, because all evidence I’ve seen says the opposite

It’s probably best to stop following / sharing content from this account when it clearly does not care for any form of proper attribution and has the science *very* wrong. 🔭 This is an infrared image of Venus taken by the Japanese Akatsuki spacecraft’s IR2 camera. 📸 JAXA/ISAS/DARTS/Damia Bouic

Have this friend who is newish to #astrophotography here in Sydney. He did 40-hour mosaic on the Vela Supernova remnant in h-alpha/[O-III] …. And holy heck it is incomprehensibly magnificent! Those are exploded star gutz. At its heart is the Vela pulsar. 🔭 Shared with permission. 📸 David Elford

I really cannot believe my childhood career dream might end like this. Feeling so small and lost.

True meritocracy takes into account not only the finish line, but also the starting point. youtu.be/IE9_oAPRTsE?...

Proud to be one of the 350 rabbis signing this statement — an ad in the NYT today and a declaration of our values. www.theguardian.com/us-news/2025... For more—and to sign— go to saynotoethniccleansing.org

MOOD

The Institute of natural sciences comes to Bluesky! 💙 From now on, follow our science news 🔬 and museum activities 🦖 on this platform. Let's bring nature into everyone's life!

👇🎉

I have resigned my Fellowship of the #RoyalSociety due to their Council's inability to act proportionately on #ElonMusk. See fediscience.org/@A_J_Millar/...

Encyclopædia Britannica will continue to use ‘Gulf of Mexico’ for a few reasons: -We serve an international audience, a majority of which is outside the U.S. -The Gulf of Mexico is an international body of water, and the U.S.’s authority to rename it is ambiguous. 🧵⬇️

Scientists from all backgrounds make AGU great! We’re celebrating some of them this #BlackHistoryMonth.

Women and girls belong in science, and their inclusion fosters innovation. In 2025, we join the United Nations to celebrate 10 years of the International Day of Women and Girls in Science—a key milestone in advancing gender equality and empowering women globally.

An open letter to the President of the @royalsociety.org – time to stand up for your values. occamstypewriter.org/scurry/2025/...

🚀 New Paper Alert! 🚀 We're excited to share our latest work at UdeA, recently published in Astronomy & Astrophysics. We show how machine learning can cut down the manual workload in rotational diagram analysis, directly decoding mm-wave spectra! 🧵 #Astronomy

esta es una buena pregunta para entender, en la práctica, quien es un fascista y cómo entender sus síntomas: 1. la fiesta taurina es una práctica anclada a las tradiciones y la identidad de un pueblo y los fascistas le hacen culto a la tradición. (sigue)

Can’t believe I’m typing this but… FUCK IT IM PLANNING A STAND UP FOR SCIENCE PROTEST IN DC. If you want to be involved, be dm me. I’m nervous, I’ve never done this before, but we gotta be the change we want to see in the world.

An excerpt from the article summary:

When Scientific American endorsed Harris, many scientists and science-friendly people were supportive and grateful, but some said: stick to science, science isn’t political, etc. But reality-denying right-wing fanatics will absolutely come for the scientists www.washingtonpost.com/science/2025...

Saying my first hello to BlueSky, and hoping it is a saner place than what the other site has unfortunately become.

Have you ever wondered what it looks like when an astronomer starts up a 2.7m telescope for the night? Wonder no more 🔭

The Sea of Crises (Mare Crisium, left) and the Sea of Fecundity (Mare Fecunditatis, right). Two lunar plains formed by flooding of ancient craters with basaltic lava. Pic from last night. 🧪 🔭

A moonscape last night. Mare Fecunditatis is the smooth region towards the left, crater Langrenus (132 km wide) is near the center, and crater Petavius (177 km wide) to the right. You can see the Messier craters in the middle of the Mare, probably formed by a low angle impact. #astrophotography 🧪🔭⚛️

The #Orion #Nebula zipping through the sky as the Earth spins. This is the region below the three #stars forming the belt, it's Orion's sword. The nebula is a region where new stars are forming. 🧪🔭 #astrophotography

This is NGC2683, the "UFO Galaxy". A field #galaxy, meaning it is gravitationally alone. It is about 30 million light-years away from us, receding from us at 410 km/s. This is a single 30 sec exposure through my 21cm aperture #telescope. #Astrophotography 🧪🔭⚛️

A glimpse of #Jupiter last night through an infrared filter. #Astrophotography 🧪🔭

“Al seems to have more godparents than even Sleeping Beauty. And, regrettably, more than one significant prick.” 😂

In my self-defense classes I focus on how most people are socially conditioned to follow the norms of a civilized, polite society — and there is a MENTAL SHIFT required to use violence to defend from violence. I'm reminded of this while watching our elected officials dithering and delaying. 1/

Shout out to all the fuckwits who told me, two months ago, that scientists must strive to remain apolitical.

I'm begging a major news org to cover the fact NSF is defying the courts to enact Trump's unconstitutional executive order

FYI google have now stopped "-ai" working at the end of your search string. So put this at the end (after a space) instead: &udm=14 Fuck you #google. #AI

For the love of God, if I see one more ',grow your own food' hot take. Sure, for occasional fresh herbs or a few veggies. Nobody is growing to their entire caloric intake in an apartment or on a balcony.