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A galaxy is made up of hundreds of billions of stars (suns). The light from the galaxies comes mainly from those stars.
However, in early galaxies, a much larger amount of energy was released from the quasar - currently believed to be the gigantic black hole in the center of galaxies.
What else can I help you with?
What causes the light from far away galaxies to bend?
If the light from a distance galaxy passes near a massive cosmic object, then the gravity of that object will distort space-time. That will cause the light to bend.
Which statment best describes how galaxies generally move?
Galaxies generally move through space due to the expansion of the universe, which causes them to drift away from each other. This motion is observed as a redshift in light from distant galaxies, indicating they are receding. Additionally, galaxies can interact gravitationally, resulting in mergers or collisions, but the overall trend is that galaxies are moving apart as the universe expands.
Describe how gravity causes stars to form galaxies?
It depends on how much gravity that causes stars to form. It depends on how big the star in the galaxies is.
Do galaxies emit light?
Yes, galaxies emit light primarily from the stars within them. This light can range from visible light to other forms of electromagnetic radiation such as radio waves, infrared, ultraviolet, and X-rays. The light emitted by galaxies allows astronomers to study their composition, age, and distance from Earth.
The size of galaxies are measured in?
They are measured in light years. Galaxies are often 100,000 light years across or more.
Do galaxies produce their own light?
Galaxies are made partly of stars, which produce light. So, in that sense, yes.
How the expansion of space could cause a red shift in the light from distant galaxies?
The expansion of space causes a redshift in the light from distant galaxies due to the stretching of wavelengths as the universe expands. As light travels through expanding space, its wavelength increases, shifting it toward the red end of the spectrum. This phenomenon, known as cosmological redshift, occurs because the space between galaxies is increasing, leading to longer wavelengths by the time the light reaches us. Consequently, more distant galaxies appear redder, providing evidence for the expansion of the universe.
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
Do galaxies emit light and why?
Well, you can see them, right? - Galaxies contain millions or billions of stars; each of these stars emit light.
If light from galaxies is redshifted what can astronomers conclude about galaxies?
That the galaxy is moving away from us.
What force causes galaxies to move away from one another in the universe?
The force that causes galaxies to move away from one another in the universe is called dark energy.
Is the Milky Way 5.8 light-years from the farthest galaxies?
No, the farthest galaxies from the Milky way are nearly 100000000000000 light years away.
