The Universe: Facing the Invisible

The discovery of Higgs particle or the detection of the first "big bang echo" are examples of the extraordinary discoveries that are made every year. Yet numerous mysteries still remain about the Universe. How was it created and how big is it? What is it made of? When is it going to disappear? What is dark matter made of? Thanks to the immense advances of space research, in a few decades all these questions might be answered...