Several of my recent talks are available to watch or listen to online, following the links below.

- Strong Cosmic Censorship versus Λ, Mathematical and Numerical Aspects of Gravitation, IPAM, 27 October 2021
- The nonlinear stability of black holes, Joint Online Mathematical Relativity Colloquium (JoMaReC), 7 October 2021
- Dynamical black holes and Penrose’s cosmic censorship conjectures, Singularity theorems, causality theory and all that, a tribute to Roger Penrose, 17 June 2021
- Minicourse: The cosmic censorship conjectures in general relativity Lecture 1, Lecture 2, Lecture 3, Lecture 4,
*Geometry and Gravity,*ICTP, Trieste, July 22–26, 2019 - On falling into black holes,
*Colloquium, University of Padova*, 11 June, 2019 - The cosmic censorship conjectures in classical general relativity,
*Gravity and black holes: Stephen Hawking 75th birthday conference*, Cambridge, 4 July 2017 - Scattering on Kerr black holes,
*Modern Developments in General Relativity and their Historical Roots*, King's College London, 12 January 2017 - The contribution of mathematics to general relativity: past, present and future,
*Einstein's legacy: celebrating 100 years of general relativity*, Queen Mary, London, 29 November 2015 - The stability problem for black holes and the strong cosmic censorship conjecture in general relativity,
*General Relativity: a celebration of the 100th Anniversary*, IHP, Paris, 17 November 2015 - On the stability problem for black holes and the cosmic censorship conjecture,
*General Relativty and Gravitation: A centennial perspective*, Penn State, 10 June 2015 - The linear stability of the Schwarzschild solution to gravitational perturbations,
*International conference on black holes*, Fields Institute, Toronto, 3 June 2015 - The "inside story" of black hole stability,
*Mathematical Problems in General Relativity,*Simons Center, Stony Brook, 21 January 2015 - The mathematical analysis of black hole spacetimes in general relativity,
*ICM*, Seoul, 14 August 2014 - The dynamics of black hole spacetimes in general relativity,
*IMPA*, Rio de Janeiro, 1 August 2014 - The "inside story" of black hole stability,
*Asymptotic Analysis in General Relativity*, Grenoble, 30 June 2014 - On null singularities for the Einstein vacuum equations and the strong cosmic censorship conjecture in general relativity,
*29th Annual Geometry Festival,*Stony Brook, 13 April 2014 - The linear stability of the Schwarzschild solution to gravitational perturbations,
*Geometric Analysis Colloquium*, Toronto, 14 February 2014 - On null singularities in general relativity
*, Strong Gravity Seminar,*Perimeter Institute, 13 February 2014

Some older talks are available below:

- Black hole stability backwards and forwards,
*Initial data and evolution problems in General Relativity,*MSRI, 19 November 2013 - The cosmic censorhip conjectures (part II),
*Introductory Workshop, Mathematical Relativity Program*, MSRI, 11 September 2013 - The cosmic censorship conjectures (part I),
*Introductory Workshop, Mathematical Relativity Program*, MSRI, 10 September 2013 - The Kerr solution as a physical object: stability,
*Conference in honour of Roy Kerr*, AEI, Golm, 4 July 2013 - Null singularities in general relativity,
*Nonlinear wave equations*, IHP, Paris, 23 May 2013 - Singularities and cosmic censorship in general relativity,
*Infinities and Cosmology,*DAMTP, Cambridge, 19 and 20 March 2013 - Recent progress on mathematical general relativity,
*Clay Research Conference*, Harvard, 17 May 2011 - Superradiance, trapping, and decay for waves on Kerr spacetimes in the general subextremal case |a| < M,
*41st Barrett Memorial Lectures in Mathematical Relativity*, Knoxville, 11 May 2011 - The black hole stability problem,
*Hot topics: Black holes in relativity*, MSRI, 17 September 2009 - An introduction to the problem of evolution in general relativity,
*Hot topics: Black holes in relativity*, MSRI, 14 September 2009 - The problem of stability for black hole spacetimes,
*Global Problems in Mathematical Relativity II*, Newton Institute, 10 October 2006