In these galaxies, especially in a spiral galaxy like this, most of the mass of the stars is concentrated in the middle of the galaxy.

There is also evidence for similar Gould belts in other galaxies.

Stars found inside of elliptical galaxies are much older than stars found in spiral galaxies.

The stars in those galaxies probably don't have planets around them.

Most galaxies in the Universe are gravitationally bound to a number of other galaxies.

In those galaxies, you'll be able to do astrophysics, and learn the laws of physics.

And they can been seen in very distant galaxies and distinguished from their neighbors.

These two populations have been observed in many galaxies, especially massive elliptical galaxies.

Open clusters are also easily detected in many of the galaxies of the Local Group.

But you can't see individual stars in those galaxies unless they blow up.

Open clusters have been found only in spiral and irregular galaxies, in which active star formation is occurring.

Interstellar cloud is the generic name given to an accumulation of gas, plasma and dust in our and other galaxies.

This found that the horizontal branch stars, like other dwarf spheroidal galaxies were predominantly red.

And also, you can tell by eye, by looking at this, that these arcs are not centered on individual galaxies.

Since that early observation large numbers of H II regions have been discovered in the Milky Way and other galaxies.

There is no consciousness in stars, in galaxies, in planets, in animals, in plants, and there ought not to be any in us either, if this theory is true.

The Commonwealth is based in three galaxies The Milky Way, Triangulum Galaxy, and the Andromeda Galaxy, located 2.7 million light years from the Milky Way Galaxy.

The ratio between CO luminosity and H2 mass is thought to be constant, although there are reasons to doubt this assumption in observations of some other galaxies.

Also, the M sigma relation predicts the existence of black holes with masses of 104 to 106 solar masses in low luminosity galaxies.

And with a more powerful telescope, you'll be able to see stars and planets in those galaxies, you'll be able to do astrophysics and learn the laws of physics.

It is one of the largest comprehensive catalogues, as it includes all types of deep space objects and is not confined to, for example, galaxies.

And while the flash of our beginning... has not yet traveled the light years into distance... has not yet been seen by planets deep within the other galaxies... we will disappear into the blackness of the space from which we came... destroyed as we began, in a burst of gas and fire.

Since the development of the telescope, the field of supernova discovery has extended to other galaxies, starting with the 1885 observation of supernova S Andromedae in the Andromeda galaxy.

And also, you can tell by eye, by looking at this, that these arcs are not centered on individual galaxies.

We find them in these distant galaxies, and we measure their brightness, we calculate the distance, we compare with the redshift, we reconstruct the expansion history of the Universe, and here's the punchline the Universe is accelerating in its expansion.

The ratio between the two types of Wolf Rayet stars (WC stars and WN stars) in IC 10 is very different from the ratio in other galaxies in the Local Group, which may be somehow due to the starburst nature of the galaxy.

If we know the true peak power because we've measured them in nearby galaxies, we measure how bright they appear to be we know how far away they are, and hence, how far back in time we are looking.

We find nearby ones, and we've calibrated them that has been done so now we want to go and find distant examples in faint, fuzzy, distant galaxies, find the supernovae, measure how bright they appear to be.

There's scant chance of life there that's because there's been no time for the nuclear fusion in stars to make silicon and carbon and iron, the building blocks of planets and of life.