Herschel finds less dark matter but more stars

[astroron (Ron)]

Just in from ESA
http://www.esa.int/esaCP/SEMRQ3PT1KG_index_0.html
This space telescope is doing some great work, with lots more to come
Cheers

[renormalised (Carl)]

Very interesting article

[CraigS]

Hmm .. got me thinking ..
So, I presume the key paragraph which may be of interest to some here is:

“Herschel is showing us that we don’t need quite so much dark matter as we thought to trigger a starburst,” says Asantha Cooray, University of California, Irvine, a co-author on today’s paper.

So, overall, we have the upper limit of known matter (stars, planets, etc) increasing mainly due to better technologies for detection. We have the amounts of DM for galaxy formation, decreasing.

The difference in proportions of DM to Baryonic matter in the obs. universe is huge … 63% DM, 37% Baryonic (a rough estimate). So, DM still remains as the overwhelming majority of 'matter' in our obs universe, eh ?

There's no escaping the stuff, folks !!

Its here to stay, eh ?

Cheers

[bojan]

Originally Posted by CraigS

Its here to stay, eh ?

Cheers

Until it's detected (using better/more suitable telescopes)

[renormalised (Carl)]

Originally Posted by CraigS

Hmm .. got me thinking ..
So, I presume the key paragraph which may be of interest to some here is:



So, overall, we have the upper limit of known matter (stars, planets, etc) increasing mainly due to better technologies for detection. We have the amounts of DM for galaxy formation, decreasing.

The difference in proportions of DM to Baryonic matter in the obs. universe is huge … 63% DM, 37% Baryonic (a rough estimate). So, DM still remains as the overwhelming majority of 'matter' in our obs universe, eh ?

There's no escaping the stuff, folks !!

Its here to stay, eh ?

Cheers

No...they still don't know what it is and they can only "detect" it indirectly, so it still might not exist. Dark matter is nothing more than another hook to hang their ignorance on. The best (and most accurate) thing they can say is they don't know what is actually happening or what this "extra mass/matter" is...if it is that at all.

[CraigS]

Originally Posted by bojan

Until it's detected (using better/more suitable telescopes)

.. or it gets made redundant by some other parallel hypothesis, which also fits all the existing observations..

Cheers

[bojan]

Originally Posted by CraigS

.. or it gets made redundant by some other parallel hypothesis, which also fits all the existing observations..

Cheers

Or that, yes...