I will present different methods and theoretical models on the detection of the first stars, which play a crucial role in galaxy formation, but which have not yet been observed. The first stars, which are believed to be more massive than present-day stars, might be indirectly observable by the gravitational wave emission of the merger […]

In 1929 Edwin Hubble rocked the physics community with his announcement that the universe was expanding – characterized shortly thereafter by his eponymous constant. Nearly 80 years later the field of cosmology has advanced tremendously with the discoveries of the accelerated expansion of the universe and precision measurements of both the universe’s mass and energy […]