If distant galaxies typically lie within a shroud of dark matter, then the Milky Way may, too.
If a distant galaxy were lined up right behind one more close by, this warping would bend and magnify the faraway galaxy's image, a phenomenon now called gravitational lensing.
The lensing effect is strong
if the distant galaxy is right behind the close one, much less
if the distant galaxy is significantly off - axis.
If a distant galaxy were made of antimatter, it would constantly be producing gamma - rays as it encountered the matter in the intergalactic gas clouds that exist throughout galaxy clusters.
Not exact matches
If the expansion continues to accelerate, then in 100 billion years, the gap between
galaxies will be growing so fast that light from
distant galaxies will no longer reach us.
You'd be hard pressed to discover laws of gravity
if you were a space creature just floating midway between a few very
distant galaxies.
And billions of years from now,
if the universe continues to accelerate,
distant galaxies will recede from us faster than light and will no longer be visible.
If the expansion is slowing down, the velocity of a
distant galaxy would be relatively greater than the velocity predicted by Hubble's law.
If the expansion is speeding up, the
distant galaxy's velocity would fall below the predicted value.
If the technique proves accurate, scientists may have a fast method for weighing supermassive black holes in the cores of
distant galaxies.
«Usually
distant galaxies do not change significantly over an astronomer's lifetime, i.e. on a timescale of years or decades,» explains Andrea Merloni, «but this one showed a dramatic variation of its spectrum, as
if the central black hole had switched on and off.»
If the light from a
distant galaxy reaches us having passed through a cluster of say, four stars, she wondered, then how many images might we see?
In addition, the gravitational lensing of quasars by
distant galaxies is only possible
if the lensed quasars are farther away than the
galaxy bending the quasar's light.
However,
if the light from many
distant galaxies passes through the stretched spacetime of a nearby
galaxy cluster, then the mass of the
galaxy cluster can be derived from a careful analysis of the ensemble of warped shapes and their orientations.
That means that
if we were on those far
distant galaxies — right this second — looking at Earth with a powerful telescope, we'd be watching the dinosaurs trample around our planet.
If the lensing effect is strong, then multiple images of a
distant galaxy will be produced and the separation angle between the multiple images gives us the mass of the lensing object (in this case, the closer
galaxy or
galaxy cluster).
Since 1976, William Tifft, a University of Arizona astronomer, has found that
distant stars and
galaxies have redshifts that typically differ from each other by only a few fixed amounts.21 This is very strange
if stars are actually moving away from us.
This puzzles astronomers.23
If the speed of light has decreased drastically — or if space and its light were stretched out during the creation week, as proposed on pages 449 — 463 — these distant, yet mature, galaxies no longer need explainin
If the speed of light has decreased drastically — or
if space and its light were stretched out during the creation week, as proposed on pages 449 — 463 — these distant, yet mature, galaxies no longer need explainin
if space and its light were stretched out during the creation week, as proposed on pages 449 — 463 — these
distant, yet mature,
galaxies no longer need explaining.
If scientists find, as one might expect, even more
distant stars and
galaxies with heavy elements, problems with the claimed age of the universe will no longer be the secret of a few evolutionists.8
Shapley said that prior to Sanders» discovery, researchers didn't know
if they could measure how much oxygen there was in these
distant galaxies.
A new analysis of
galaxy colors, however, indicates that the farthest objects in the deep fields must be extremely intense, unexpectedly bright knots of blue - white, hot newborn stars embedded in primordial proto -
galaxies that are too faint to be seen even by Hubble's far vision — as
if only the lights on a
distant Christmas tree were seen and so one must infer the presence of the whole tree (more discussion at: STScI; and Lanzetta et al, 2002).
If humans survive that long, our
distant descendants will one day see two
galaxies stretched across the night sky.
If you think of peering into the depths of the universe as like looking down from the hundredth floor of the Empire State Building (with the hundredth floor representing now and street level representing the moment of the Big Bang), at the time of Wilson and Penzias's discovery the most
distant galaxies anyone had ever detected were on about the sixtieth floor, and the most
distant things — quasars — were on about the twentieth.
The eight computer generated photo - paintings located in the lower level of the gallery are a reflection of the invisible energy surrounding nature and inspired by drawings Mori made in front of the ocean back in her native Japan.The photo - paintings emitted a cosmic and atmospheric aura that made me feel as
if I was transported into a
distant serene
galaxy.
where are the observations that show
distant galaxies shrinking in our fireld of view which must be the case
if they are moving away from us at near light speed?