The presence of dark matter in our Universe has been well-established by a multitude of astrophysical observations dating back to the 1930s. However, dark matter has not yet been detected directly. I will discuss the convincing evidence that supports the existence of dark matter, the ongoing experiments and projects that seek to uncover its true nature, and future prospects. I will focus on a powerful technique, known as gravitational lensing, which allows us to weigh the dark matter in structures ranging from galaxies to superclusters of galaxies and infer global properties of our Universe.
Tea and coffee available in LJ1.20 from 6.30 p.m.