Dark Energy - Dark Matter... Do you believe?
From what I understand the "Standard Model" for our universe at this time calls for about 4% atomic mass, 25% dark matter, and 71% dark energy. Mathematically and observationally we know that the speed of stars within galaxies and expansion the expansion speed of galaxies from galaxies is still increasing. Further, we know that the gravity from the atomic structure is not enough to support these two observations. So, we are searching for the elusive neutrino to prove dark matter exists but at present we have not been able to capture even the effect a neutrino should have on atomic mass as it passes through it. But my hypothesis is that that will not really matter too many of you on this site. HOW many of you believe in Dark Matter?
Phoneix - What?
Not - I am attempting an argument based on universal logic
injanier - how so?
Dashes - Name the source. Dark matter has not been detected.
The observations of the Bullet Cluster, officially known as galaxy cluster 1E0657-56, do not explain what dark matter is. They do, however, provide one solid little hint, said Douglas Clowe, a researcher at the University of Arizona in Tucson.
"We can place some constraints on dark matter particles," said Clowe. It appears that dark matter particles, whatever they are, behave more like the raisins than the oatmeal – they are either widely spaced, like stars, or have some other way of avoiding collisions with each other.
It’s a small clue, said Clowe, but seeing it play out in the Bullet Cluster makes it an unusually solid clue for what’s so far proven to be the most mysterious stuff in the universe.
"The great news about this is that it shows once and for all that dark matter exists," said physicist Sean Carroll of the University of Chicago. And that means, he said, there’s less need to tweak Einstein’s laws of gravitation to explain what’s seen in galaxies.
Diane - you could not be more wrong.
The composition of dark matter is unknown, but may include ordinary and heavy neutrinos, recently postulated elementary particles such as WIMPs and axions, astronomical bodies such as dwarf stars and planets (collectively called MACHOs), and clouds of nonluminous gas. Current evidence favors models in which the primary component of dark matter is new elementary particles, collectively called non-baryonic dark matter.
... I used neutrinos as a likley indicator of observable dark matter