Are Dark Matter And Dark Energy The Same?

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Astronomers are the worst at naming things. Dark energy AND dark matter? Who can remember which is which. But perhaps one astronomer has just fixed it, with a theory that says perhaps actually they are they same stuff.

Space Time Journal Club digs into "A Unifying Theory of Dark Energy and Dark Matter" by J. Farnes, 2018

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Previous Episode: Why String Theory Is Wrong

Hosted by Matt O'Dowd
Written by Graeme Gossel & Matt O'Dowd
Graphics by Luke Maroldi
Assistant Editing and Sound Design by Linda Huang

Jamie Farnes, astrophysicist at Oxford just published a paper suggesting that both dark energy and dark matter may result from the same phenomenon. And it’s pretty wild: negative mass particles continuously popping into existence between the galaxies. This rather extravagant claim resulted in a hysterical response from the media. Our viewers’ perfect blend of bright-eyed curiosity and cynical skepticism led to many MANY requests for us to do an episode on this new result. You got it. Today on Space Time Journal Club, let’s pick apart J.S. Farnes 2018, “A unifying theory of dark energy and dark matter: Negative masses and matter creation within a modified Lambda-CDM framework”.

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سلطان الخليفي

[OnyxIdol]

While this paper may ultimatively be flawed, I still think these kinds of things have a place. It's sort of like brainstorming, where you throw out ideas that are in themselves ridiculous, but which can nonetheless inspire people to come up with something that actually works.

[guillermojrboy]

Man, datamining this game is hard. If only there was a way to talk to the Devs themselves.

[realitycheck]

10:05 anti-unicorns are real. I saw a stallion during mating the other day.

Btw, you got the position of the horn all wrong.

[samhall]

“Matt is currently stuck at an event horizon...” Wait, my next week or his next week?

[wuuglyv]

Original script: “No”.
Producer: “Hmm...I see what you mean, but you’d better fill it out to a full episode “

[urinater]

Dark Energy = Dark Matter x (Speed of Dark)^2

#Unified

[LeoStaley]

A friend of mine says he knows Dr Farnes, and tells me that he himself thought that the main value of his article was to spark interesting ideas among physicists, and that he himself wasn't too vested in the theory as presented in the paper.

[sny]

Every time Matt is about ending an episode, I stop listen to the reasoning and instead only listen for how he is about to end the episode with "Space Time".

[truecerium]

I alwaysthought that "dark" is a stand-in for " we don´t know yet" :)

[kobiromano]

"Probably not a Negative Mass, Anti-Gravitational, Positive Pressure, anti De-Sitter Space Time"
- Can we have that as a t-shirt design?

[sidshetye]

It is done. "Dark matergy" it is.

[NewMessage]

"Astronomers are the worst at naming things... I mean, Siriusly..."


Noice.

[MarioAchkar]

I love PBS spacetime. It is one of the most credible and entertaining channels I know with the most accurate and logical information as compared to other science channels. Each episode is very well prepared, studied and conveyed leaving only little room for occasional errors.

[kathyfausett]

They're like Mickey and Minnie Mouse. Somewhat different, but both complete figments of someone's imagination.

[scienceontheright]

I am seriously annoyed with lazy journalism too!! But not just with science. More so with politics. In fact, I think journalism died years ago in favor of click bait and divisive news :(

[PaulPaulPaulson]

Photon-like radiation that wouldn't interact with regular matter would be called dark light

[vytautasdanielius]

Guess you could say all the scientists are in the dark about this one.

[kookverslaving]

talk about Erik Verlinde's paper on emergent gravity!!! It's already been over a year and no one has taken it up

[while.coyote]

You're going to regret that anti-unicorn crack someday when you finally discover they've been the only thing holding dark matter back this whole time.

[Zahlenteufel]

That ending was very smooth :) I was looking forward to this episode ever since I saw the news on Reddit. I do know some physics, not the least from this channel, but reading physics papers is always so confusing because of all the weird stuff named after people (and also the weird high-dimensional geometry things). Maybe you could do an episode explaining the de Sitter stuff (if they did somebody please point me to it). I was trying to wrap my head around "Emergent de Sitter Cosmology from Decaying Anti-de Sitter Space" and that de Sitter part was the main obstacle for me. Maybe you could even do a journal club on that because it proposes (afaiu) a fourth large spatial dimension which I thought was highly unlikely because you mentioned it in a previous episode (something about that gravity would work along it and that is not consistent with observations). Anyway, great episode!