- September 2022, Gravitational Lensing, Inverno Astrofísico, Domingos Martins, Brazil
- September 2022, Introdução à gravitação, Inverno Astrofísico, Domingos Martins, Brazil
- September 2022, Enhanced Recombination and the Hubble tension, VI Escola JPB, Pedra Azul, Brazil
- September 2022, Introdução à Cosmologia, Universo no parque, Vitória, Brazil
- June 2022, Enhanced Recombination and the Hubble tension, Estate Quantistica 2022, Scalea, Italy
- September 2020, Review of the cosmological constant problem, GravBR initiative seminar.
- July 2020, About the hiding of the cosmological constant, Heidelberg University ITP Cosmology group seminar. (Sorry, no slides, I showed the paper directly).
- July 2019, Lectures on the cosmological constant, two invited lectures at the Institute of Theoretical Physics of the Heidelberg University
- December 2018, The effect of the cosmological constant on the bending of light, cosmology group seminar at the Institute of Theoretical Physics of the Heidelberg University
- July 2018, Introduction to Gravitational Waves, series of 3 lectures delivered at the Inverno Astrofísico 2018. Here are the slides.
- PPGFis seminar (colóquio do PPGFis). November 22, 2017. Gravitational Lensing.
- PPGCosmo Colloquium. September 6, 2017. Gamma, Zeta and prime Numbers.
- PPGFis seminar (colóquio do PPGFis). May 3, 2017. Introdução à Cosmologia (in Portuguese).
- Introduction to Cosmology (in Portuguese). 3 lectures delivered at Primeira Escola de Ciências Físicas Brasil-Cabo Verde. Lecture 1, Lecture 2, Lecture 3. Cape Verde, April 3-13, 2017.
- Lensing in the McVittie metric. September 2, 2015. ICG (Portsmouth, UK)
- Causal Bulk Viscous Cosmology - Bulk Viscosity as Unified Dark Matter. November 17, 2010. CBPF (Rio de Janeiro, Brazil)