# Strong cosmological phase transitions and their gravitational wave signals

- Institution: CERN
- Department: TH institutes
- Speaker: Marek Lewicki
- Year: 2025
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3021758)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

We are currently witnessing the dawn of a new era in astrophysics and cosmology, started by the LIGO/Virgo observations of Gravitational Waves (GWs). Recently, also the detection of a stochastic background of GWs at very low frequencies was announced by the Pulsar Timing Array collaborations. In this talk, I will discuss terminal velocities reached by expanding bubble walls and the GW signals produced in very strong cosmological phase transitions ..

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## Lectures

1. [Strong cosmological phase transitions and their gravitational wave signals](https://invisiblenetwork.ai/learn/cern/3021758/e2177a5f83c9), 45 min (CERN's player)