title

Research on Genius Tour


Graphical design for pads

visuel_pad


Black hole


The web site http://nrumiano.free.fr/Estars/b_holes.html is ecellent to explain the black holes.

Credit: X-ray: NASA/CXC/CfA/R.Kraft et al.; Submillimeter: MPIfR/ESO/APEX/A.Weiss et al.; Optical: ESO/WFI