HENON
| Mission type | Space weather probe |
|---|---|
| Operator | ESA |
| Spacecraft properties | |
| Spacecraft type | 12U CubeSat |
| Manufacturer | Argotec |
| Start of mission | |
| Launch date | NET 2026 |
HENON (HEliospheric pioNeer for sOlar and interplanetary threats defeNce), is a planned space weather and technology demonstration mission by the European Space Agency (ESA) in the form of a 12U CubeSat. It will be ESA's first stand-alone deep space CubeSat. The goal of the mission is to demonstrate solar storm forecasting capabilities with 3–6 hours of advance warning before a storm reaches Earth, a considerable improvement compared to the current warning time. The launch of HENON is planned for the end of 2026.