Blender is a Free Animation Software you can create amazing looking imges or Movies!
Like this 3D Motorbike:
But you can also create Animations, there lots of great animations that are made.
Here is a very great animation made in blender :
There are many great Renderer Functions and Renderers like [Blender Renderer Engine] and [Cycles Renderer Engine].
Here is a image of the [Blender Renderer Engine] and [Cycles Renderer Engine] :
The difference between [Blender Renderer Engine] and [Cycles Renderer Engine]
are that Cycles Renderer look much better but needs more power of the Computer than Blender Renderer.
Here is an Image of the [Cycles Renderer] :
You can see it looks pretty amazing and down there are blocks for the shader.
There are many great beginner friendly toutorials on Youtube how blender works.
If you want to create an Animation there is this toutorial how to create an amazing looking Planet :