A year ago I started building first prototypes of a device that would be capable of calculating #moon phases based on the historical Metonic cycle. The result was „Meton“, a 3D-printed lunar phase calculator. So if you need an #opendata moon machine, go ahead.

https://www.thomasweibel.ch/?post=rechner-aus-dem-drucker

Or build it yourself, from oak and steel.

#astronomy #astrophysics #mathematics #antiquity #history #3dprint #mechanics #moonphase #openglam #digitalhumanities #diy #analogcomputing

A year ago I started building first prototypes of a device that would be capable of calculating #moon phases based on the historical Metonic cycle. The result was „Meton“, a 3D-printed lunar phase calculator. So if you need an #opendata moon machine, go ahead.

https://www.thomasweibel.ch/?post=rechner-aus-dem-drucker

Or build it yourself, from oak and steel.

#astronomy #astrophysics #mathematics #antiquity #history #3dprint #mechanics #moonphase #openglam #digitalhumanities #diy #analogcomputing

L'Univers ralentit sa production d'étoiles : après 10 milliards d'années de pic, les nouvelles naissent de moins en moins https://www.bbc.com/afrique/articles/cp8942e9g0po #Space #Science #Innovation #Astrophysics #CosmicEvolution #JWSTData #BigFreeze

L'Univers ralentit sa production d'étoiles : après 10 milliards d'années de pic, les nouvelles naissent de moins en moins https://www.bbc.com/afrique/articles/cp8942e9g0po #Space #Science #Innovation #Astrophysics #CosmicEvolution #JWSTData #BigFreeze

'Dracula's Chivito': Hubble reveals largest birthplace of planets ever observed

https://phys.org/news/2025-12-chaotic-dracula-chivito-hubble-reveals.html

#HackerNews #Chivito #Hubble #planets #astronomy #space #exploration #astrophysics

🪐‘My main motivation is that I want to find out how life could have arisen at Earth.’

Planetary scientist at the UG Tim Lichtenberg recently found an unexpected atmosphere, while his colleague Quentin Changeat studies that of a rocky 'lava planet'.🔥

🌍 What can we learn from exoplanets?

Curious? Read more 👇
🔗https://www.rug.nl/fse/news/matter-and-space/stormy-planets-and-an-unexpected-atmosphere

🧪 #SciComm #astronomy #JamesWebbspacetelescope #astrophysics #physics #extraterrestrial #ET #exoplanets #research #scientistsOnMastodon @universityofgroningen

How do you cool house-sized instruments to –270°C… right in the middle of #Chile 's Atacama Desert?

That’s one of the challenges behind our Extremely Large Telescope (ELT), whose astronomical instruments (the largest ever built!) must stay ultra-cold to catch the faintest cosmic signals.

The solution: giant custom cryogenic facilities, built on a scale never attempted before, as so often with the ELT 😉

https://www.youtube.com/watch?v=Ms194oA_xaw

#astrodon #astronomy #astrophysics #space #science #engineering

Good day all! Upcoming episode of Fireside Fedi! TODAY!

The #livestream will be on: https://stream.firesidefedi.live

Special Guest: @hfalcke
#Prof. #Astrophysics, columnist D/NL, #bestseller #author 'Lim Dunkeln/Light in the Darkness/Licht in de duisternisi' about the first image of a black hole shadow with the Event Horizon Telescope, that I was deeply involved in. Work at Radboud University, Nijmegen (NL), live near Cologne (D). Am a happy European, Christian, dad, and granddad.

So don't miss it!

It will happen on 10 December 2025 at 14:00 US Eastern Time ( UTC-5 )

If by any ungodly chance you miss the show:
#PeerTube ( #VOD ): https://tubefree.org/@firesidefedi

Or, even on #YouTube: https://youtube.com/@btfree_org

#firesidefedi #fediverse #fedi #interview #freesoftware #opensource #userfreedom #freedom #resistance

Good day all! Upcoming episode of Fireside Fedi!

The #livestream will be on: https://stream.firesidefedi.live

Special Guest: @hfalcke
#Prof. #Astrophysics, columnist D/NL, #bestseller #author 'Lim Dunkeln/Light in the Darkness/Licht in de duisternisi' about the first image of a black hole shadow with the Event Horizon Telescope, that I was deeply involved in. Work at Radboud University, Nijmegen (NL), live near Cologne (D). Am a happy European, Christian, dad, and granddad.

So don't miss it!

It will happen on 10 December 2025 at 14:00 US Eastern Time ( UTC-5 )

If by any ungodly chance you miss the show:
#PeerTube ( #VOD ): https://video.firesidefedi.live
#Castopod #Fedicast ( Audio ): https://audio.firesidefedi.live

Or, even on #YouTube: https://youtube.com/@btfree_org

#firesidefedi #fediverse #fedi #interview #freesoftware #opensource #userfreedom #freedom #resistance

🚀🕳️ THIS BLACK HOLE DID NOT STICK AROUND

James Webb confirmed the first-ever runaway supermassive black hole—blasting through space at 2.2 million mph after getting kicked out of its home galaxy. It’s tearing through the “Cosmic Owl” galaxies, dragging a glowing trail of gas like celestial tire smoke. A black hole fleeing the scene. Webb caught it red-handed. Mind=boggled.

🔗 https://www.space.com/astronomy/black-holes/james-webb-space-telescope-confirms-1st-runaway-supermassive-black-hole-rocketing-through-cosmic-owl-galaxies-at-2-2-million-mph-it-boggles-the-mind

#JamesWebb #JWST #BlackHole #SpaceNews #Astronomy #Astrophysics #UniverseIsWeird #MindBlown

🚀🕳️ THIS BLACK HOLE DID NOT STICK AROUND

James Webb confirmed the first-ever runaway supermassive black hole—blasting through space at 2.2 million mph after getting kicked out of its home galaxy. It’s tearing through the “Cosmic Owl” galaxies, dragging a glowing trail of gas like celestial tire smoke. A black hole fleeing the scene. Webb caught it red-handed. Mind=boggled.

🔗 https://www.space.com/astronomy/black-holes/james-webb-space-telescope-confirms-1st-runaway-supermassive-black-hole-rocketing-through-cosmic-owl-galaxies-at-2-2-million-mph-it-boggles-the-mind

#JamesWebb #JWST #BlackHole #SpaceNews #Astronomy #Astrophysics #UniverseIsWeird #MindBlown

A somewhat stereotypical and weird interaction I have now seen several time with several people:

Them: "I and my collaborators like your project/idea/code, could you privately share all details with us please?"

Me: "Ok, that might work, but can you tell me a bit more about what you want to do with it?"

Them: "No way, you need to sign a non-disclosure-agreement with us first".

😱 😱 😱 😱 😱

Anyone else...?

#Academia #astrophysics #science

National Geographic listed our first picture of a black hole among the top 25 science results of the past 25 years. I still remember that very moment, where I was nervously on stage in Brussels to present this image and nearly screwed up as by mind was a black hole for a short moment. I am deeply grateful to the @ehtelescope and the people that made it happen. Many more results followed and there is more to come!

https://www.nationalgeographic.com/science/article/top-discoveries-in-the-last-25-years

#blackhole #astronomy #science #astrophysics

🪐‘My main motivation is that I want to find out how life could have arisen at Earth.’

Planetary scientist at the UG Tim Lichtenberg recently found an unexpected atmosphere, while his colleague Quentin Changeat studies that of a rocky 'lava planet'.🔥

🌍 What can we learn from exoplanets?

Curious? Read more 👇
🔗https://www.rug.nl/fse/news/matter-and-space/stormy-planets-and-an-unexpected-atmosphere

🧪 #SciComm #astronomy #JamesWebbspacetelescope #astrophysics #physics #extraterrestrial #ET #exoplanets #research #scientistsOnMastodon @universityofgroningen

Thank you again to @hfalcke for joining me on today's episode of Fireside Fedi!

Find the link to Fireside Fedi's NEW home: https://tubefree.org/w/kKZcoNV4qwjz3GGdrfN9yq

#physics #astrophysics #life #tech #science #fediverse #peertube #vod

#Youtube - https://www.youtube.com/@btfree_org

#stream #interview #firesideFedi #FsF #people #peopleOverPlatforms #protocolsOverPlatforms #fedi #fediverse #open #internet #openInternet #podcast #show #episode #peertube #vod #castopod #writefreely #lemmy #boostplease #fedizen #btfree #bigTechFree #nonprofit #signup #tubeFree

If you're enjoying the show, please consider supporting our new nonprofit btfree.org at https://givebutter.com/btfree. We're currently running https://tubefree.org which is a moderated peertube open for signups right now!

Good day all! Upcoming episode of Fireside Fedi! LIVE NOW!

The #livestream will be on:

https://stream.firesidefedi.live
https://twitch.tv/btfreeorg
https://youtube.com/@btfree_org

Special Guest: @hfalcke
#Prof. #Astrophysics, columnist D/NL, #bestseller #author 'Lim Dunkeln/Light in the Darkness/Licht in de duisternisi' about the first image of a black hole shadow with the Event Horizon Telescope, that I was deeply involved in. Work at Radboud University, Nijmegen (NL), live near Cologne (D). Am a happy European, Christian, dad, and granddad.

So don't miss it!

It will happen on 10 December 2025 at 14:00 US Eastern Time ( UTC-5 )

If by any ungodly chance you miss the show:
#PeerTube ( #VOD ): https://tubefree.org/@firesidefedi

Or, even on #YouTube: https://youtube.com/@btfree_org

#firesidefedi #fediverse #fedi #interview #freesoftware #opensource #userfreedom #freedom #resistance

How do you cool house-sized instruments to –270°C… right in the middle of #Chile 's Atacama Desert?

That’s one of the challenges behind our Extremely Large Telescope (ELT), whose astronomical instruments (the largest ever built!) must stay ultra-cold to catch the faintest cosmic signals.

The solution: giant custom cryogenic facilities, built on a scale never attempted before, as so often with the ELT 😉

https://www.youtube.com/watch?v=Ms194oA_xaw

#astrodon #astronomy #astrophysics #space #science #engineering

Good day all! Upcoming episode of Fireside Fedi! TODAY!

The #livestream will be on: https://stream.firesidefedi.live

Special Guest: @hfalcke
#Prof. #Astrophysics, columnist D/NL, #bestseller #author 'Lim Dunkeln/Light in the Darkness/Licht in de duisternisi' about the first image of a black hole shadow with the Event Horizon Telescope, that I was deeply involved in. Work at Radboud University, Nijmegen (NL), live near Cologne (D). Am a happy European, Christian, dad, and granddad.

So don't miss it!

It will happen on 10 December 2025 at 14:00 US Eastern Time ( UTC-5 )

If by any ungodly chance you miss the show:
#PeerTube ( #VOD ): https://tubefree.org/@firesidefedi

Or, even on #YouTube: https://youtube.com/@btfree_org

#firesidefedi #fediverse #fedi #interview #freesoftware #opensource #userfreedom #freedom #resistance

Good day all! Upcoming episode of Fireside Fedi!

The #livestream will be on: https://stream.firesidefedi.live

Special Guest: @hfalcke
#Prof. #Astrophysics, columnist D/NL, #bestseller #author 'Lim Dunkeln/Light in the Darkness/Licht in de duisternisi' about the first image of a black hole shadow with the Event Horizon Telescope, that I was deeply involved in. Work at Radboud University, Nijmegen (NL), live near Cologne (D). Am a happy European, Christian, dad, and granddad.

So don't miss it!

It will happen on 10 December 2025 at 14:00 US Eastern Time ( UTC-5 )

If by any ungodly chance you miss the show:
#PeerTube ( #VOD ): https://video.firesidefedi.live
#Castopod #Fedicast ( Audio ): https://audio.firesidefedi.live

Or, even on #YouTube: https://youtube.com/@btfree_org

#firesidefedi #fediverse #fedi #interview #freesoftware #opensource #userfreedom #freedom #resistance