Presentation Open Access
The presentation introduces to the current best picture we have of the history and constituents of our universe. It describes the so called Lambda-Cold-Dark-Matter cosmological model, which is supported most by evidence. An overview is given of some of the early ground-based observations as well as the space missions by ESA and NASA, which provided the evidence that speaks for this model. Finally, it is described how this model is submitted to more and more stringent tests using space telescopes like Euclid and Nancy Grace Roman.