galaxies造句

Galaxies are classified into three main types: spiral galaxies, elliptical galaxies, and irregular galaxies.

Without it, galaxies and clusters of galaxies should fly apart.

From those density fluctuations galaxies eventually formed.

Still, elliptical galaxies can be very large.

Other galaxies are placed irregularly in space.

These smaller galaxies are considered the building blocks of the larger galaxies we see today.

Elliptical galaxies do not take on the flat-disk or spiral shapes that most galaxies do.

Elliptical galaxies may also be small, in which case they are dubbed dwarf elliptical galaxies.

Few new stars are known to form in elliptical galaxies.

"Cool! " Trevor exclaimed. "This is probably a travel through galaxies! "

The Magellanic Clouds are irregular galaxies of this type.

Now we are finding evidence of star birth in many elliptical galaxies, fueled mostly by cannibalizing smaller galaxies.

The observations suggest that elliptical galaxies like this still have some youthful vigor left, thanks to encounters with smaller galaxies.

Most galaxies in Coma and other clusters are ellipticals, while most galaxies outside of clusters are spirals.

Explanation: What's the matter with this cluster of galaxies?

For a number of other galaxies, astronomers can circumvent the dark-matter problem by observing how a galaxy bends the light of more distant galaxies.

In MACSJ0717, a 13-million-light-year-long stream of galaxies, gas and dark matter -- known as a filament -- is pouring into a region already full of galaxies.

The concept was first proposed in 1933 to explain why the outer galaxies in galaxy clusters orbit faster than they should, based on the galaxies' visible mass.

Although researchers have yet to learn much about the stellar populations within these galaxies, one thing they do know is that "the galaxies are extremely blue," says Robertson.

In the green firmament of a slough, galaxies of duckweed are stirred by slow moving waters.

No, the galaxies sit more or less passively in the space around them.

Looking at very distant masers or galaxies is like looking at a photograph taken ages ago.

The tides disrupt the galaxies as they repeatedly swing close to one another.

In the specific model we developed, elliptical galaxies have roughly equal numbers of each type.

The diameter of the rings depends not only on the distance to the galaxies that caused them but also on the masses of those galaxies. The more massive they are, the more the light is bent.

The strength of the absorption features indicates that red dwarfs account for 80 percent of the number of stars in elliptical galaxies and 60 percent of the total stellar mass in those galaxies.

At the observed speeds, the outer galaxies should be flung out into space, since the clusters don't appear to have enough mass to keep the galaxies at their edges gravitationally bound.

As I looked more closely at the tiny areas of light, I suddenly realized they looked like galaxies.

An open question remains whether these White Dwarf mergers are the primary catalyst for Type 1a supernovae in spiral galaxies.

One of these galaxies was NGC 4258, whose distance was very accurately determined through observations with radio telescopes.

Both satellite galaxies resemble the ones that smashed together long ago to create giant galaxies like our own, so the discovery helps illuminate how such galactic building blocks formed and evolved.

A Hubble Space Telescope image— shows M87[ lower right] a giant elliptical galaxy. Elliptical galaxies do not take on the flat-disk or spiral shapes that most galaxies do.

Cosmic strings are thought to be incredibly long, up to the order of the sizes of thousands of galaxies.

From sea shells and spiral galaxies to the structure of human lungs, the patterns of chaos are all around us.

Seen here through faint foreground dust clouds lingering above the plane of Milky Way, this visual grouping of galaxies is also known as the Deer Lick group.

There are other lensed background galaxies in the image as well, and the astronomers used those to get the mass of 146-ig.

Benson says that the steep metallicity gradient agrees with the long-standing but unconfirmed idea that spiral galaxies form their discs of stars from the inside out.

The cluster of galaxies Abell 2218 is itself about three billion light-years away in the northern constellation of the Dragon (Draco).

Astronomers have also known for years that some large galaxies don't seem to be forming any new stars; they are full of aging SUNS.

When Cowie and Lilly calculated the star formation rates in all the galaxies they observed, they came to the remarkable conclusion that the universe underwent a veritable baby boom at a redshift of about one.

Explanation: a careful look at the full field of view for this sharp image reveals a surprising number of galaxies both near and far toward the constellation Ursa Major.

The researchers "pointed out that if you're looking at the distribution of galaxies, and you're looking at the wrong cosmology, you're going to end up with a distorted mess," Strauss says.

Of course, the Hubble is above the earth's atmosphere, so it will soon be sending us the clearest pictures of the stars and distant galaxies that we have ever seen.

Caption:: A supercomputer-produced cross-section of part of the universe shows galaxies as brighter dots along filaments of matter, with a sea of dark energy filling in between the galactic islands.