Sentences with phrase «on dark matter theory»

«Based on dark matter theory, we expect a lot of little dwarf galaxies and clumps of dark matter in and around the Milky Way,» she says.

Not exact matches

«In general, a fundamental theory of nature can explain certain phenomena, but it may not always end up giving you the right amount of dark matter,» said Hooman Davoudiasl, group leader in the High - Energy Theory Group at Brookhaven National Laboratory and an author on the theory of nature can explain certain phenomena, but it may not always end up giving you the right amount of dark matter,» said Hooman Davoudiasl, group leader in the High - Energy Theory Group at Brookhaven National Laboratory and an author on the Theory Group at Brookhaven National Laboratory and an author on the paper.

As experiments place ever more stringent constraints on the strength of dark matter interactions, there are some current theories that end up overestimating the quantity of dark matter in the universe.

Making everything fit requires a new theory of gravity, plus additional undiscovered long - range forces, and still requires some exotic dark matter on top of that.

Dark matter particles predicted by supersymmetry — a theory that proposes hidden connections between matter particles and particles that transmit forces — might be an early discovery of the LHC, depending on how much the particles weigh, said CERN director - general Rolf Heuer.

But if the theory of dark matter is correct, then the speed of stars rotating on the galaxy's outskirts should also depend on the shape of the galaxy's dark matter halo.

In other words, a theory of gravity can do away with dark matter but can not describe the universe simply as the product of a tweaked Einsteinian gravity acting on the mass we can see.

Now physicists are talking about dark matter and dark energy based on a theory whose traces can barely be perceived.

Some theories say that dark matter is only an illusion caused by a failure to understand the way gravity works on the grand scale of the universe.

The discovery of these dwarf galaxies, the first in nearly a decade, could provide much needed data to test current theories on the origin and nature of dark matter — the elusive force that holds galaxies together.

With current observations suggesting that dark energy comprises more than 70 percent of the matter - energy density of the present - day universe, astronomers say that measuring the apparent shapes and the distribution of galaxies in the Universe will constrain the nature of dark energy and allow them to examine whether the general theory of relativity is still a valid description of gravitation on scales of billions of light years.

Bryan, you are perhaps unaware of the Big Bang vs Steady State rows, the rows about existence of black holes, the rows about the causes of active galactic nuclei, the current rows about inflationary theory (which touch on your reference to dark matter).

Actually, scientists continue to debate the nature of gravity, as reflected in this headline last November on the respected science website Phys.org: «New theory of gravity might explain dark matter.»