@RGBes sure, but that was a real strike on a random day. The Friday ones now have the status of an actual family tradition like Xmas

Learn #italian with me, the days of the week:

LUNEDì
MARTEDì
MERCOLEDì
GIOVEDì
SCIOPERODì
SABATO
DOMENICA

Monday
Tuesday
Wednesday
Thrusday
Strikeday
Saturday
Sunday

#sciopero #astrodon

How can can one plausibly connect Easter, Lisbon, tsunamis and clusters of galaxies? Let me tell you in this #AstroPhysicsFactlet #astronomy #astrodon 

@RGBes but some presidents do look like they come from another planet, and only are short term visitors of this...

#academic #astrodon

Just had a remote zoom meeting with colleagues who are organising a meeting in their institution.

Question to them: "Could you plan about the budget for the meeting?"

Answer: "Well, you know, we have this crazy president of state and we don't know how it is going to be.."

Now: can you guess the country?
Can you squeeze the range of possibility to less than 5 or 10 countries? 🙄

A new #AstrophysicsFactlet prompted by a smart question posed by a student of my Astroparticle course for astronomers.

In a nutshell: why the maximum energy of the #CosmicRays we can capture as they collide with the atmosphere of our planet is so much bigger than the maximum energy of the cosmic rays we can accelerate with human made accelerators, like the Large Hadron Collider (LHC) ?

#astrodon #astronomy

#AI I have discovered by chance the rabbit hole of the fantastic (/s) business model of the zeitgeist, which is self writing and publishing booklets of fairy tales for children, but occasionally also about diets or anything else entirely created using #ChatGPT and similar, allegedly in less than 24h. Then all sold on amazon.
now my day is ruined and I think we deserve extinction.

@mcnees Nice thread about the equation of states of the different constituents of the Universe!
quite some time ago, I did something vaguely similar here:
https://mastodon.social/@franco_vazza/109647449680240271

#Astronomy #Astrodon #astrophotograph

This photo of a supernova appearing in spiral galaxy M101 is a gem for at least two reasons:
- it is beautiful and it won a section of the Wikimedia Science Photo Contest
and
- it was taken by Serhiy Khomenko and it shows how there are people in #Ukraine, who despite the war and alarms and power cuts were able to even care so deeply about the universe in May 2023, and they still do now 💪

Kindly pointed to me by a colleague in 🇺🇦
credits and details ⬇️

Like in real life, also in extragalactic astronomy there are VIPs*. If you are into clusters of galaxies, the top of the VIP probably is the
Coma clusters of galaxies, aka Abel 1656.

Let's do a small #AstroPhysicsFactlet to see why

#astrodon
#astronomy

*=Very Important Potential (wells)

The Universe is full of stars!

By extrapolating some numbers based on local measurements, we can guess there are about 1e12-1e13 galaxies just in the observable part of our Universe, for a total of at least~1e24 stars.

When did the Universe form them? How well do we know?

Here is an #AstrophysicsFactlet about this.

#astronomy #astrodon #astronomia