Luis Calçada

YouTube video by European Southern Observatory (ESO) The Extremely Large Telescope can't work without these key systems

Without them, the ELT simply would not function!

We are talking about the ELT's giant Pre-Focal Stations. Currently undergoing final tests, they will guide the light collected by the telescope to the scientific instruments that will analyse it.

More: www.youtube.com/watch?v=OWCB...
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Sim, vinha dizer exatamente isso. Disse o troglodita do meio: “O senhor do meio acabou de dizer “hoje em dia não se pode chamar preto a um preto, cigano a um cigano; mas pode-se chamar mulher a um homem”

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By pure chance, Stefan observed the Sun last Friday with a custom-made telescope. The active region seen here close to the edge of the Sun's disc have now rotated more towards us. A so-called coronal mass ejection coming from this region has caused the ongoing geomagnetic storm.

📹 S. Ströbele/ESO

#Aurora over Europe!

We're currently experiencing a strong geomagnetic storm, which caused a stunning auroral display all over Europe last night. This time-lapse was captured by our colleague Stefan Ströbele over our headquarters in Garching near Munich. 🔭 🧪

📹 S. Ströbele/ESO

Fantastic!

RXJ0528+2838, a dead star creates a bow shock as it moves through space. Captured with MUSE on @eso.org VLT and alternates with an image from the DSS taken about 30 years ago.

Credit: ESO/K. Iłkiewicz and S. Scaringi et al./DSS2.
www.eso.org/public/news/... 🔭🧪

In a few hours in some areas of the world, interstellar visitor 3I/Atlas is going to be occluded by the moon. Interesting unique (and challenging) shooting opportunity, astrophotographers out there? 🔭🧪

I produced with my colleagues at @eso.org a new episode of our Chasing Starlight series about 3I/Atlas, where we interviewed comet specialist Cyrielle Opitom #astronomy 🔭 🧪

Runs in VR too ;) We're pretty excited about it, we'll release more info later

It's an app we're currently developing for virtually exploring the ELT. We're planning to release it for free to educators next year and also as a video game on gaming platforms, at a later stage

Assistant for the day.
Working on the ELT model in Unreal Engine @eso.org 🧪🔭

Unique shape of star’s explosion revealed just a day after detection @eso.org. Some background info on how I produced the image and illustration using @jangafx.bsky.social Embergen luiscalcada.com/supernova-ex... 🔭🧪

Whooooaaaa, this is extremely neat!

And spectropolarimetry (which is the best, and what we used in my first paper too!) is at its core 💙

In a nutshell: astronomers used the polarization of light to study the shape of a supernova explosion before it interacted with surrounding material.

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A digital illustration of a star going supernova, surrounded by a gaseous disc in orange and red tones. The star is seen exploding in an olive shape, directed above and below the star.

For the first time ever, astronomers have unveiled the shape of a supernova explosion just a day after detection, as the blast was breaking through the star’s surface.

Achieved by our VLT, this feat will help us understand how massive stars die: https://www.eso.org/public/news/eso2520/

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Great job on the poster!

Beautiful lands

Groundbreaking new image! The EHT reveals the dynamic environment around black hole M87*.

The 2021 image shows a distinct shift in polarization patterns, tracing changes in magnetic fields near the event horizon.

eventhorizontelescope.org/new-eht-imag...

Forged in fire. My cover for the latest @nature.com issue.
www.eso.org/public/news/...

ALMA(ESO/NAOJ/NRAO)/M. McClure et al.
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Double detonation: Zooming into Supernova remnant SNR 0509-67.5. New observations with @eso.org shows remains of star destroyed by pair of explosions.
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(ESO/L. Calçada/N. Risinger/VMC Survey/DSS2/P. Das et al. Background stars (Hubble): K. Noll et al.)

ICYMI, our VLT has imaged the remains of a star destroyed by a pair of explosive blasts! 😲

Learn all about this ‘double-detonation’ mechanism in our video summary 📽️

Full story: https://www.eso.org/public/news/eso2511/

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What an embarrassment, NYT.

Somehow the whole system smaller than the orbit of Mercury 😂

As for your second point, in the very beginning of the video we are using adjectives people typically associate with BHs, regardless of whether they are valid for all BHs or not ("reputation"). Perhaps we should do a video about dispelling black hole myths at some point." 3/3

But you are right that we should have made it clear in that first segment that we were referring to stellar black holes in our galaxy. We’ll add a comment about this. 2/3

Thanks for your comments Markus and thanks for watching. There’s only so much we can fit in a video about how massive black holes get and, this being an ESO video, we gave preference to BH recently observed with ESO telescopes. 1/3

How massive can black holes get?
Our latest Chasing Starlight episode is out:
youtu.be/_HSHxxOIZCE
#astronomy @eso.org 🔭

Great job! I know Igreja do Carmo in Porto when I see it ;)

Incredible!

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