Did We Just Detect Dyson Spheres? Featuring Dr. Gabriella Contardo

A new paper by Gabriella Contardo and David W. Hogg, reveals a large-scale search combining observations from ESA Gaia DR3, 2MASS, and NASA WISE, leading to the identification of 53 unique objects with significant mid-infrared excesses, potentially indicative of Dyson Spheres or Alien megastructures.

‘Dyson spheres’ were theorized as a way to detect alien life. Scientists say they’ve found potential evidence

Papers
"A Data-Driven Search For Mid-Infrared Excesses Among Five Million Main-Sequence FGK Stars", Contardo and Hogg, 2024

"Project Hephaistos - II. Dyson sphere candidates from Gaia DR3, 2MASS, and WISE", Suazo et al, 2024

"IRAS-based Whole-Sky Upper Limit on Dyson Spheres", Carrigan, 2005

A planetary collision afterglow and transit of the resultant debris cloud

A Star-sized Impact-produced Dust Clump in the Terrestrial Zone of the HD 166191 System

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[ToldTellTV]

Me and my partner are about to settle down and listen to this in our hotel room. Hello from Scotland!

[leveldk]

I always watch your videos twice. I work shifts, starting at 5am everyday. I come home and have lunch and fall asleep listening. Then driving back to work in the afternoon, listen again to your fascinating content. The only channel on youtube that helps me sleep and helps me wake up. Absolutely brilliant content yet again. Thank you.

[mikelouis]

Basically, these searchers are seeking a needle in the biggest haystack imaginable and they really don't have a very accurate description of a needle. Yet, they persist. Kudos

[Rasiusas]

Great channel, one of the best bringing professionalism and entertainment in one package

[stavrosg]

Video is out 3 min. 30 likes. We love you John

[redcoat]

Thanks for the video John! Hello from NYC!

[juanmanuelelizalde]

Have we considered that a type 3 civilization would encapsulate multiple stars, making entire systems invisible to us. The mater would still be there, but from our perspective, it would be completely dark.

[POLICECAMERA]

This video is really interesting! It's worth watching to expand your knowledge on this topic!

[russellneitzke]

Would it be more efficient to setup a dyson sphere in a system that still has a debrit field before it differentiates and accreets in to planets? Right now we can only mine up to seven miles deep so the majority of resources on our planet are unavailable.

[kanight]

No way I was just on my way to listen to Event Horizon and I got the notification for this!

[piotrd.]

20:00 - 50 in 5 000 000 - 1: 100 000 is fraking LOT considering we're talking about supposed artifacts visible on interstellar distances (only successfully created ones!). It would be also nice to discuss their spatial distribution, as Milky Way is anywhere between 100 and 400 billion starts which would yield even 1 000 000 (!) in entire galaxy after simplistic extrapolation. Hello?

[nias]

Seems like for NIIR the sparial resolution and spectral unmixing could be a problem for anomaly detection could be tough if something is in the pixels with the target.

[FirstLast-rbzj]

The obvious way to detect unusual stuff in general is usually to train the system to detect the usual stuff in general. When something doesn't match the prediction then you flag that.

[tehdii]

If there is a question in your mind: Should I make this video louder? Always say yes :)

[davidoneill]

Great show I love this podcast from ireland

[Kennyaj]

You are in top form these days. Thank you so much for these videos, nobody does it better.

[CSABHOF]

Great to see that people all over the world watch Event Horizon 👍

[synaxarion]

21:58 - When are you going to interview the guy who found the possible spatial clustering of seeming analogues of Boyajian's Star (apparent dimming of F-class stars).

[CKief]

Always loved the Dyson swarm idea. What makes me think it’s not the immense quantity of matter needed to build such structure or the advanced engineering and technological capabilities, it’s why would they need so much energy locally, probably due to an exotic way of travel, to keep portals open or to feed an advanced AI 🤯

[SirReptitious]

I can't remember the name of the law, but if a click-bait title is in the form of a question, the answer is always NO. Now I will listen to it to verify it...