The jets shown in the article come from the accretion disk [1], a disk of matter orbiting the black hole, formed as matter 'spirals' in.
For reasons we aren't 100% sure about yet (though we suspect it is due to angular momentum and energy transfer through some process [3]), matter (in the form of hot plasma) from this accretion disk can be launched out along the axis of rotation at relativistic speeds (close to the speed of light) in the form of astrophysical jets [2], which we can observe to due the radiation they emit.
These jets play a large part in galaxy evolution, and as shown in the article can be huge, extending far beyond the galaxy itself.
If you were looking to do this and wanted a text library that is more flexible than MonoGame's bitmap fonts, I maintain the QuickFont library for text rendering with OpenTK: https://github.com/opcon/quickfont. It doesn't have very good unicode support though.
It seems good, as others have stated it is a bit low contrast.
I just have one small problem with the header/title. Right now it's click able on the whitespace surrounding the title. I've outlined this http://i.imgur.com/isRbJ.png
The red box is where it's click able now, and the green box is where I think it should be click able.
For reasons we aren't 100% sure about yet (though we suspect it is due to angular momentum and energy transfer through some process [3]), matter (in the form of hot plasma) from this accretion disk can be launched out along the axis of rotation at relativistic speeds (close to the speed of light) in the form of astrophysical jets [2], which we can observe to due the radiation they emit. These jets play a large part in galaxy evolution, and as shown in the article can be huge, extending far beyond the galaxy itself.
1: https://en.wikipedia.org/wiki/Accretion_disk 2: https://en.wikipedia.org/wiki/Astrophysical_jet 3: https://link.springer.com/article/10.1007/s10509-009-9984-y