Outreach

My outreach is mostly centred around public talks and explaining how we use simulations and observations to understand dark matter. Below are a few things that might be of interest.

Watch / Listen

  • Carnegie Astronomy Lecture at The Huntington (2026)
    A public lecture on dark matter, and how we can use merging galaxy clusters to try and work out what it is. The event information is here.
    You can watch the full recording below:

  • The Absurd Search For Dark Matter (Veritasium, 2022)
    I am a big Veritsaium fan, so was excited that my Bullet Cluster simulations made an appearance! https://www.youtube.com/watch?v=QAa2O_8wBUQ

  • BBC Radio 4 – The Today Programme (2018)
    A (slightly choppy) recording of an interview discussing the fact that dark matter does not appear to be strongly self-interacting. You can read an associated newspaper article here.
    Download audio

Exhibitions

  • Galaxy Makers (Royal Society Summer Science Exhibition, 2016)
    I helped design and build this interactive exhibit exploring galaxy formation and dark matter, which has since been presented at a number of public events across the UK.
    https://www.galaxymakers.org/about.php

In Person

  • Pasadena City College – Shining a Light on Dark Matter (2025)
    Public lecture on dark matter and strong lensing. A short article about the event is available here:
    https://pcccourier.com/media/gallery-pcc-students-journey-through-the-universe-with-dr-robertson.html

  • Carnegie Observatories Open House (Pasadena)
    These events are typically held each October and are open to the public. If you’d like to find out more about the important place that Pasadena (and the Observatories in particular) has in the history of astrophysics then I recommend coming along!