Cluster II is part of an international collaboration to investigate the
physical connection between the Sun and Earth. Flying in a tetrahedral
(triangular pyramid) formation, the four spacecraft collect ...
The CELIAS instrument is designed to study the composition of the solar
wind (SW) and of solar and interplanetary energetic particles on
SOHO. SOHO is a project of international cooperation between ...
The Energetic and Relativistic Nuclei and Electron (ERNE) Sensor Unit
(ESU) has two energetic particle sensors: LED and HED.
ERNE will investigate the solar atmosphere by detecting charged