The Cold Dark Matter model is highly successful at explaining observations of the large-scale structure of the Universe. However, it has challenges in matching observations on small scales, in the regime of dwarf galaxies. Observationally, these challenges have been established more convincingly for dwarf galaxies in the Local Group, and particularly within the Milky Way. Simulations with...
One of the most important cosmological discoveries ever made is that our Universe is
expanding, and that this expansion is accelerated. Interestingly, we don’t know why! The best
model so far describing the evolution of our Universe is primarily dominated by Dark energy,
a mysterious force which comprises ~75% of our Universe, and is believed to cause the
expansion. Additionally,...
Black holes are an extremely fruitful playground for theoretical physicists, allowing one to address complex questions about the nature of reality, such as the information paradox, quantum entanglement, and even the use of black holes as a proxy for a quantum field theory in flat space. Here we discuss what we can learn solely from the mathematical structure of certain black holes in a...
Universities and national labs in North America have, in recent years, increased the level of activities supporting and promoting diversity in the field of physics, bringing together minority groups for educational and inspirational conferences, discussion panels and summer camps. In this work, I summarise different types of programs I have been involved in (both as the main organiser and as a...