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We actually know about what the stars WERE like, since our telescopes are picking up the light that they gave off a very very long time ago.

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Can we see stars in other galaxies from Earth?

Look at those beautiful galaxies! Whilst we can make out individual stars in the galaxies closest to us, trying to see individual stars in galaxies billions of light-ages away would be quite a challenge. But maybe one day, someone will find a way to see the beauty of those stars up-close! Love, Joy, and Happy Painting!


How do we know that the Universe is expanding?

We know the universe is expanding because we can measure the redshift of distant galaxies. This redshift indicates that galaxies are moving away from us, and the further away a galaxy is, the faster it is moving away. This observation supports the idea of an expanding universe.


How do galaxies and stars contribute to the overall structure and composition of the universe?

Galaxies and stars play a crucial role in shaping the structure and composition of the universe. Galaxies are vast collections of stars, gas, and dust held together by gravity. They contain billions of stars and other celestial objects, forming the building blocks of the universe. Stars, on the other hand, are the primary sources of light and energy in the universe. They produce elements through nuclear fusion, which are then dispersed into space when stars die. These elements form the basis of new stars, planets, and other celestial bodies, contributing to the diversity and composition of the universe. Overall, galaxies and stars are fundamental in shaping the structure and composition of the universe as we know it.


What technology use to explore in space?

Technologies such as satellites, telescopes, spacecraft, rovers, and probes are used to explore space. These devices help scientists and researchers study planets, stars, galaxies, and other celestial bodies in our universe. They provide valuable data and information that deepen our understanding of the cosmos.


Why are galaxies different colors in the universe?

Galaxies appear in different colors in the universe due to the varying ages and compositions of their stars. Younger stars emit blue light, while older stars emit red light. The mix of these stars in a galaxy determines its overall color.

Related Questions

What cause changes in the light coming from distant stars and galaxies?

The apparent redshift is caused by the Doppler Effect; the frequency of waves is increased by an approaching source and decreased by a leaving source. Since the fgrequencies we see from stars are slightly lower than they should be, we know that the stars and other objects are moving away. The Doppler Effect causes changes of light emanating from distant stars and galaxies.


Why do scientist study the light coming from distant galaxies?

They study distant galaxies because they want to know whats out in other galaxies and how many planets it has


Is there a place in the universe that is so distant from stars or other celestial bodies that if one were to be placed there one would see nothing but blackness?

If there is then we, being right beside a star, cannot know of it. We appear to be surrounded by stars and galaxies.


How far away are the most distant galaxies?

That is impossible to answer because scientist don't know ALL the galaxies.


What type of galaxy includes little gas and dust and no longer produces stars?

the galaxy that contains no blue stars is I DO NOT KNOW and i would like to know the answer too


How do you know what distant stars are made of?

Scientists can determine the composition of distant stars by analyzing their spectra. The light emitted by stars contains distinct absorption or emission lines that correspond to specific elements present in the star's atmosphere. By studying these spectral lines, scientists can identify the elements present in a star and determine its chemical composition.


Do stars form into galaxies?

Galaxies are vast collections of stars. So I guess you could say that a big group of stars forms a galaxy. Our galaxy has many big clusters of stars within it, so not all star clusters are galaxies. If you have a cluster of several million or billion (or trillion) stars surrounded by a lot of empty space, that is probably a galaxy.


How does electromagnetic radiation from distant galaxies support the big bang theory?

Given by the fact that electromegnetic energy cannot be seen and how the radiation from distant galaxies supports the big bang theory? it can easily be said that...I dont know the answer. (0_0)


Explain how scientist know that elliptical galaxy do not contain many young stars?

Scientists know that elliptical galaxies do not contain many young stars because observations have shown that they have mostly older stars with low levels of interstellar gas and dust needed for star formation. This lack of gas and dust suggests that these galaxies have exhausted their supply of materials for forming new stars and are no longer actively forming young stars.


Do scientists know of any other galaxies in the universe besides the Milky Way?

Yes.


How do scientists study the movement of galaxies in the universe?

blah blah blah... I dont know...


What is the name of a distant galaxy with a black hole?

As far as we know, most, if not all galaxies have a massive black hole at their centre.