AI Insight
The European-Chinese Smile mission officially began its scientific operations on 23 September after completing its in-space commissioning phase. The spacecraft, which launched on 19 May and reached its target orbit on 20 June, is designed to study how Earth's magnetosphere responds to the solar wind, the continuous stream of charged particles emitted by the Sun. This marks the transition from the spacecraft's testing phase to active data collection.
Why it matters
Understanding Earth's interaction with solar wind is crucial for predicting space weather events that can disrupt satellite communications, GPS systems, and power grids. This mission will provide valuable data to help protect technological infrastructure and better forecast potentially hazardous solar activity affecting Earth.
Understand the Science

On 23 September, the European-Chinese Smile mission was declared ready to start revealing how Earth responds to the wind of charged particles from the Sun. This follows a busy in-space commissioning period since the spacecraft launched on 19 May and reached its target orbit for science operations on 20 June.
Source: Science begins for Smile