Which of these events can happen when galaxies collide?(1 point)
Responses
Galaxies merge.
Galaxies merge.
Galaxies destroy their stars.
Galaxies destroy their stars.
Galaxies disappear.
Galaxies disappear.
Galaxies triple in size.
Galaxies merge.
Which is the Milky Way?(1 point)
Responses
a dwarf galaxy
a dwarf galaxy
a galaxy destroyed in a collision
a galaxy destroyed in a collision
a galaxy that does not include our solar system
a galaxy that does not include our solar system
a galaxy containing Earth
a galaxy containing Earth
Which galaxy will collide with the Milky Way in several billion years?(1 point)
Responses
Andromeda Galaxy
Andromeda Galaxy
Large Magellanic Cloud
Large Magellanic Cloud
Sagittarius Dwarf Galaxy
Sagittarius Dwarf Galaxy
Local Group
Andromeda Galaxy
When galaxies collide, the events that can happen include:
1. Galaxies merge: When galaxies collide, their gravitational forces can pull them together, causing them to merge into a single galaxy.
2. Galaxies destroy their stars: The collision of galaxies can cause disruptions to the orbits of stars, leading to star formation or destruction in some cases.
3. Galaxies disappear: In rare cases, the collision of galaxies can result in the complete disruption of the galaxies involved, causing them to disappear.
4. Galaxies triple in size: While it is not common for galaxies to triple in size due to a collision, the merger of multiple galaxies can lead to an increase in the overall size and mass of the resulting merged galaxy.
When galaxies collide, several events can occur. Among the given options, the event that can happen when galaxies collide is that they merge. To understand this, we need to have some basic knowledge about galaxy collisions.
Galaxies are vast systems of stars, gas, and dust held together by gravity. When two galaxies come close to each other, their gravitational forces can cause them to interact and eventually collide. During a collision, the gravitational forces distort the shapes of the galaxies and cause them to merge together over a long period of time.
Merging of galaxies typically occurs when they are of similar sizes. As they come together, their respective stars, gas, and dust get pulled towards the center of mass. Through this process, the galaxies combine and form a new, larger galaxy. The stars from both galaxies become part of the merged galaxy, and their properties and orbits are altered in the process.
It is important to note that galaxy collisions do not usually result in the destruction or disappearance of galaxies or their stars. Instead, the collision can create dramatic changes in the structure, shape, and appearance of the galaxies involved. This process can lead to the formation of new stars, triggering starbursts and other energetic phenomena within the merged galaxy.
Therefore, the correct response to the question is that when galaxies collide, they can merge.