Cosmic rays of a wide range of energies are arriving permanently to the Earth coming from the Sun or beyond our solar system. Their study is of interest for many fields of research. A high granularity and high time resolution cosmic ray tracking detector, TRAGALDABAS, based on timing RPC cells, has been recently installed at the Faculty of Physics of the Univ. of Santiago de Compostela, in Spain, in order to go deeper into the understanding of the cosmic rays arriving to the Earth surface. In this article, the layout and the main performances of the detector are shown together and some of the expected research fields are discussed.