Sentences with phrase «effect on dark matter»

Not exact matches

Dark matter is just matter that we can't see but is definately there, we can see it's effect on the bending of light and the motion of stars but we just can't see it.

Dark matter also plays a central role in structure formation and galaxy evolution, and has measurable effects on the anisotropy of the cosmic microwave background.

By looking for the effects of unexplained gravitational tugs on stars, scientists may be able to determine whether galaxies are littered with dark matter clumps.

There's enough good evidence for dark matter's effect on the universe that «it would be very premature to say this makes us abandon it,» he says.

This shield should have little effect on dark - matter particles because they are thought to interact very weakly with normal matter.

If the new force does exist, we might soon be able to see its effects on things influenced by dark matter, such as the behaviour of black holes or the masses of the first stars, says Douglas Finkbeiner of Harvard University, who was not involved in the new study.

Compared with the galaxy - laced, matter - filled regions where we've so far directed most of our study, voids should «feel» the enlarging effects of dark energy or modified gravity more, on account of having less gravity - generating matter acting as a counterbalance.

Although we can see dark matter's gravitational effects on stars and galaxies, it does not otherwise interact with ordinary matter, and we know frustratingly little about its properties.

Because its effects on the larger star were seen after just 10 weeks of observations, the team says there are probably many more like it in the cluster, perhaps even enough to account for all the dark matter needed to hold the cluster together.

Dark Matter is thought to exist because of its gravitational effects on stars and galaxies, gravitational lensing (the bending of light rays) around these, and through its imprint on the Cosmic Microwave Background (the afterglow of the Big Bang).

A speculative form of dark matter could have a surprising effect on the universe's early evolution — making gravitational waves from the big bang easier to see

The rest is dark matter, which is invisible to us except for subtle hints, like its gravitational effects on the cosmos.

Almost all the evidence for dark matter ultimately depends on its gravitational effects.

Back then, all stars needed to form was a primordial soup of mostly hydrogen and some helium atoms, perturbed by the effects of gravity on minuscule differences in the density of the gases, and the mysterious substance known as dark matter.

Dark matter's presence has for decades been inferred from its gravitational effects on large - scale structures such as galaxy clusters, but because it does not interact much with ordinary matter and does not emit or absorb light — hence the «dark» moniker — it has so far proved impossible to observe firsthDark matter's presence has for decades been inferred from its gravitational effects on large - scale structures such as galaxy clusters, but because it does not interact much with ordinary matter and does not emit or absorb light — hence the «dark» moniker — it has so far proved impossible to observe firsthdark» moniker — it has so far proved impossible to observe firsthand.

At the January 2007 meeting of the American Astronomical Society in Seattle, N.Y.U. professor of physics Glennys Farrar presented findings that pointed to the existence of a long - range force acting on dark matter that would have significant observable effects in the cosmos.

Studying the distorting effects of gravity on light from background galaxies, astronomers uncovered the presence of a filament of dark matter extending from the core of the cluster.

Studying the effect of dark energy on large - scale structure involves measuring subtle distortions in the shapes of galaxies arising from the bending of space by intervening matter, a phenomenon known as «weak lensing.»

Three potential causes have been identified for this weird discrepancy: dark energy may be pushing the boundaries of universe faster and faster, sterile neutrinos may be adding something to the equation we didn't count on, or dark matter may have a bigger effect on matter or radiation than we thought.

We may not be able to spot dark matter, but astronomers can measure its gravitational effects acting on normal matter.

In a dense 51 - page paper posted online on Nov. 7, Verlinde casts gravity as a byproduct of quantum interactions and suggests that the extra gravity attributed to dark matter is an effect of «dark energy» — the background energy woven into the space - time fabric of the universe.

It's known indirectly through its gravitational effects (based on these, scientists think dark matter outweighs ordinary matter by a factor of at least five).

Thus, for Parker's defining installation of the suspended fragments of a blown - up shed, Cold Dark Matter: An Exploded View (1991), we're given both a personal and a political context behind the piece: the effect on the artist of living in London during a period of IRA bomb threats; her initially ambivalent attitude towards the army — whom she subsequently worked with to blow up the shed — and how she felt about the event itself.