The universe is expanding faster and faster, but what is driving this frenzy is a mystery to physicists. Theoretical physicist Claudia de Rham explains why the solution could lie in a vacuum – and where Einstein may have been wrong.
Claudia de Rham stands in front of a blackboard full of scribbles, the perfect video call background for a theoretical physicist. In her book “The Beauty of Falling,” she writes about how the quest to understand gravity has shaped her life. She worked for years to become an astronaut and then developed a new theory of gravity with colleagues that is supposed to explain the accelerated expansion of the universe.