SPEARHEAD Interim Report Meeting #2

SPEARHEAD Interim Report Meeting #2

The Horizon Europe project SPEARHEAD (SPEcification, Analysis & Re-calibration of High Energy pArticle Data) has successfully completed its second Interim Report Meeting (IRM2), marking another major milestone in the project’s lifecycle. Building on the strong...
A new catalogue of >100 MeV solar energetic proton events

A new catalogue of >100 MeV solar energetic proton events

Within the framework of the SPEARHEAD project, we present a new catalogue of high energy particles observed by SOHO/ERNE in the last three solar cycles (1996–2024), with protons of >100 MeV. The catalogue is based on a systematic identification of solar energetic...
High-Energy Particles in the Heliosphere

High-Energy Particles in the Heliosphere

In May 2025, the University of Turku hosted the intensive Master’s-level course High-energy Particles in the Heliosphere as part of the Horizon Europe SPEARHEAD project, bringing together students from across Europe both on-site and online. Over four weeks,...
School & Workshop 3

School & Workshop 3

1. Aim & Scope The third Workshop and School was hosted by CAU at Kiel. The School run from 04-08 September 2026 and Workshop #3 followed from 09-11 September 2026. Both gathered all Consortium Partners, members of the External Advisory Board (EAC), and young...
GLE77 – The Solar Storm of November 11, 2025

GLE77 – The Solar Storm of November 11, 2025

On 11 November 2025, a powerful X5-class solar flare erupted from the Sun at 10:10 UTC, associated with a fast coronal mass ejection (CME) directed towards Earth. The event — designated Ground Level Enhancement 77 (GLE77) — was one of the strongest solar energetic...