# Introducing primordial black holes

- Institution: CERN
- Speaker: Christian Byrnes
- Year: 2026
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3026033)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

While black holes can be the remnants of stellar collapse, some may have formed in the early universe - making them primordial black holes (PBHs). These would form a relic from the early universe, preserving a memory of the initial conditions of the universe at early times and on small scales. PBHs do not require the introduction of new fundamental physics, making them a special dark matter candidate. In this talk, I will outline observational constraints on PBHs and potential routes to a detection, explore their connections to gravitational wave signals and early universe cosmology, and discuss how the evaporation of primordial black holes could produce high-energy particles.

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## Lectures

1. [Introducing primordial black holes](https://invisiblenetwork.ai/learn/cern/3026033/74a54454b952), 51 min (CERN's player)