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Why isn't the look-back time important among nearby galaxies?
Galaxies change very slowly.
What type of galaxie is smaller and fainter than other galxies?
Dwarf galaxies are smaller and fainter than other types of galaxies. They typically contain fewer stars and have lower luminosity compared to larger galaxies like spiral or elliptical galaxies. Despite their size, dwarf galaxies can be important for understanding galaxy formation and evolution, often serving as satellites to larger galaxies.
What are the galaxies from largest to smallest?
Galaxy sizes range from smallest to largest in the following order: dwarf galaxies, spiral galaxies (such as the Milky Way), elliptical galaxies, and finally, giant elliptical galaxies. It is important to note that this is a general categorization and there is variation in sizes within each galaxy type.
What important observation did Edwin Hubble make about the movement of galaxies?
In the late 1920s, the astronomer Edwin Hubble discovered that most of the galaxies he observed were moving away from Earth.
What is important about Hubble discovery that there is a red shift in the spectra of galaxies?
that the universe is expanding(: YouR WelomE
What are the two important discoveries Hubble made that proved other galaxies exist outside our own?
Hubble discovered that the nebulas were galaxies based on the powerful telescope at Mt Wilson. The second discoveries was the red shift relationship v=HD shows that the galaxies were outside our own galaxies definitely and quantitatively, using light sources in galaxies that were standard sources that could calibrate the distance.
What are two important discoveries hubble made that proved other galaxies exist outside our own?
Hubble discovered that the nebulas were galaxies based on the powerful telescope at Mt Wilson. The second discoveries was the red shift relationship v=HD shows that the galaxies were outside our own galaxies definitely and quantitatively, using light sources in galaxies that were standard sources that could calibrate the distance.
How is gravity important to the galaxies within our universe?
Gravity is crucial for the formation and structure of galaxies in our universe. It pulls together gas, dust, and stars, allowing them to clump together and form galaxies. Without gravity, galaxies would not be able to hold together and maintain their shape. Additionally, gravity plays a key role in the interactions between galaxies, influencing their movement and behavior within the universe.
Why is it important to view galaxies that are far away and galaxies that are close?
To know what is the life there, and if there's any other creatures or "aliens". some scientists are looking for planets with water and life on them.
Who found the galaxies?
who discovered the galaxies who discovered the galaxies
What are the types or categories for galaxies?
Spiral galaxies, barred spiral galaxies, elliptical galaxies, and irregular galaxies
How does the concept of co-moving play a role in understanding the dynamics of galaxies in the universe?
The concept of co-moving helps us understand how galaxies move together in the expanding universe. By considering galaxies that move together as a group, we can study their interactions and behaviors more effectively. This concept is important for analyzing the dynamics and evolution of galaxies in the vast universe.
