# Dark Particles and Bright Bursts: Future Stories from the Gamma-Ray Sky with GALAXIS

- Institution: CERN
- Speaker: Orion Ning
- Year: 2026
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3026499)
- 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)

The MeV gamma-ray sky remains the least explored window in the astrophysical electromagnetic spectrum, with no current or approved mission providing continuous all-sky coverage and precise source localization in this band. I will discuss GALAXIS, an idea that developed into a full-scale collaboration to design, build, and launch a telescope designed to fill this gap. Originally motivated by the search for QCD axions from core-collapse supernovae, GALAXIS has evolved into a multi-purpose MeV observatory whose science cases include exciting opportunities for both astrophysics and BSM physics; these include gamma-ray burst detection and localization, as well as powerful sensitivity to decaying dark matter across largely unprobed parameter space. I will describe the path from particle physics motivation to astrophysical observatory, and the path forward toward realizing GALAXIS as an instrument that will actually launch in the near future.

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## Lectures

1. [Dark Particles and Bright Bursts: Future Stories from the Gamma-Ray Sky with GALAXIS](https://invisiblenetwork.ai/learn/cern/3026499/566d8e90e4c4), 11 min (CERN's player)