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When scientists look at very distant galaxies through powerful telescopes they see the galaxies as they were millions or billions of year ago. Why is this?
The vast distances involved means that the light we see left those galaxies a long time ago.
What does the Draco Dwarf Galaxy look like?
Dwarf galaxies typically don't have a well-defined shape like the spirals many large galaxies form. It's spheroidal, meaning it looks a little bit like a slightly squashed sphere.
How are multiple galaxies are organized?
The four groups of galaxies are put into groups by the way they look, Spiral galaxies like our vary own milky way have tentacle like arms that make a spiral, there are also barred spiral galaxies that have only two arms in which give it a bar like appearance like the sculptor galaxy. We also have the elliptical and irregular galaxies. Elliptical galaxies have an ellipsoid or.. egg shaped look to them, Irregular galaxies don't have a particular look to them .. its and odd galaxy for sure one that always looks different from other galaxy. So i would say there classes depend on how they look.. there characteristics.
What are the observations that tell us that the universe is changing?
Mainly that galaxies that are very far away (i.e., from the distant past) look different to galaxies that are near-by (from the more recent past).
Why is a map preferred to a globe?
Maps allow you to see several areas of the surface at once and compare sizes, distances, etc. where a globe's curved surface obscures view and makes it difficult to look at a large area.
What is one way that an elliptical galaxy differs from the other types of galaxies?
Elliptical galaxies are large blob shaped galaxies that most galaxies will eventually look like. Elliptical galaxies are what happens when two or more large galaxies collide and coalesce.
If disorder increase with time why universe looks almost the same on a large scale in all directions?
Those two things are completely unrelated.The Universe looks the same in different directions.The Universe does NOT look the same at different distances. If you look at farther galaxies, in other words farther back in time, they look different than galaxies look now. If you look even further in time, at one time there weren't even any galaxies.Those two things are completely unrelated.The Universe looks the same in different directions.The Universe does NOT look the same at different distances. If you look at farther galaxies, in other words farther back in time, they look different than galaxies look now. If you look even further in time, at one time there weren't even any galaxies.Those two things are completely unrelated.The Universe looks the same in different directions.The Universe does NOT look the same at different distances. If you look at farther galaxies, in other words farther back in time, they look different than galaxies look now. If you look even further in time, at one time there weren't even any galaxies.Those two things are completely unrelated.The Universe looks the same in different directions.The Universe does NOT look the same at different distances. If you look at farther galaxies, in other words farther back in time, they look different than galaxies look now. If you look even further in time, at one time there weren't even any galaxies.
When scientists look at very distant galaxies through powerful telescopes they see the galaxies as they were millions or billions of year ago Why is this?
The vast distances involved means that the light we see left those galaxies a long time ago.
When scientists look at very distant galaxies through powerful telescopes they see the galaxies as they were millions or billions of year ago. Why is this?
The vast distances involved means that the light we see left those galaxies a long time ago.
How does the galaxy get bigger?
Galaxies get bigger by a process of merging. The gravitational attraction of the galaxy and the dark matter round it pull in satellite galaxies and these merge with the main galaxy. Eventually large galaxies merge to form large elliptical galaxies. look at the link below.
Are there other galaxies besides the Milky Way galxay?
Yes. Some examples of galaxies (which you can look up) are the: Andromeda Galaxy, the Large Magellanic cloud and the Small Magellanic Cloud.
Are the continents evenly distributed around Earth?
Nope... They are pretty much where they look on a map, some are separated by large distances and others are close together. It's also important to remember that either size or shape must be distorted on a flattened map, so what you see isnt always perfectly accurate.
Which stars are actually a galaxy?
No stars are actually a galaxy. All stars are stars and all galaxies are galaxies. Stars are found in galaxies. Some galaxies look like tiny dots in our night sky, so might look like a star, but they are not stars; they are galaxies.
Do galaxies all look the same?
No.
What shape is a magellanic cloud galaxie?
The large magellanic cloud galaxy has an irregular shape. It does not look like spiral and elliptical galaxies shown in pictures.
What does the Draco Dwarf Galaxy look like?
Dwarf galaxies typically don't have a well-defined shape like the spirals many large galaxies form. It's spheroidal, meaning it looks a little bit like a slightly squashed sphere.
Why isn't the look-back time important among nearby galaxies?
Galaxies change very slowly.
