Holy Cow!

[XFool]

The Dispute at the Heart of Cosmology

The Atlantic

The universe is expanding, but no one can agree on exactly how fast.

[TheMotorcycleBoy]

I think we've known (i.e. made some measurements which suggest this) about the expansion for some time.

The thing that I'm fundamentally at odds with in the Cosmology Conundrum, though, is Dark Matter. It feels like it must be a fudge factor of sorts. Hence it will be abandoned at some point in time. Just as the pre-relativistic thought ether was when Einstein came along.

Matt

[stewamax]

The original article by the excellent Natalie Wolchover was in Quanta - see https://www.quantamagazine.org/cosmolog ... -20190808/.
Quanta can be viewed free and is not funded by advertising but is backed by the Simons Foundation.

Usual disclaimers.
And highly recommended.

[Slarti]

I think we've known (i.e. made some measurements which suggest this) about the expansion for some time.

The thing that I'm fundamentally at odds with in the Cosmology Conundrum, though, is Dark Matter. It feels like it must be a fudge factor of sorts. Hence it will be abandoned at some point in time. Just as the pre-relativistic thought ether was when Einstein came along.

Matt

We watched the Sky at Night Guide to Galaxies https://www.bbc.co.uk/iplayer/episode/b ... 2-galaxies and in that that Chris Lintott said that there is something that we don't know what it is that produces more gravity than we can account for and, until we know what it is, it is referred to as Dark Matter.

Similar for Dark Energy that is causing accelerating inflation.

Slarti

[scrumpyjack]

But it might be gravity from all the other universes that are out there. There is no reason to suppose there is only one universe?

[Imbiber]

But it might be gravity from all the other universes that are out there. There is no reason to suppose there is only one universe?

Mmmm.... Never thought of that, interesting

[Slarti]

But it might be gravity from all the other universes that are out there. There is no reason to suppose there is only one universe?

It does seem that the more that "we" can see, the more that there is to see.

Slarti

[stewamax]

It does seem that the more that "we" can see, the more that there is to see.

Indeed. And perhaps what is extant is so arcane that "we" are not able to understand it.
Vide JBS Haldane's famous quote: My own suspicion is that the universe is not only queerer than we suppose, but queerer than we can suppose.

[XFool]

It does seem that the more that "we" can see, the more that there is to see.

I had that exact same experience this afternoon; while I was out 'litter picking' in a local park.