Space Sounds: The Music of the Cosmos

Posted on May 28, 2021 in Gresham College, Outreach, Public lecture, Science, universe

A Gresham College lecture as Visiting Professor of Cosmology, part of the series “The Unexpected Universe“. “In space, no one can hear you scream”. The chillingly accurate tagline of Ridley Scott’s 1979 space horror classic, Alien, is often belied in science fiction movies, forgetting that in space there is no air, and hence no sound. Space today […]

Bad news for LISA and Dark Matter line emission from the Galactic Centre

Posted on Sep 27, 2016 in astro-ph, Research

Today on the arXiv (arXiv:1609.08093) Camille Bonvin and collaborators (whom I know well from my days in Geneva) rule out the possibility to use the distortion in the gravitational waves chirp signal to measure the acceleration of the universe. They find that the peculiar acceleration is much greater and therefore would (1) wash out the […]