Technology & Science

ESA–China SMILE Satellite Gives Earth First X-Ray Magnetosphere View After Vega-C Launch

On 19 May 2026 at 05:52 CEST a Vega-C rocket lofted the joint ESA-CAS SMILE spacecraft, the first observatory able to photograph Earth’s magnetic boundary in soft X-rays, filling a 70-year observational gap in space-weather monitoring.

By Underlines Team

Focusing Facts

  1. SMILE separated into a 707 km parking orbit 55 minutes after launch and will reach its 5 000 × 121 000 km science orbit via 11 burns over 42 days, enabling 45-hour continuous auroral imaging.
  2. The mission carries four instruments—including the University of Leicester–built Soft X-ray Imager—and is jointly funded/operated by ESA (€130 m contribution) and the Chinese Academy of Sciences, marking their first fully co-developed mission.
  3. Current single-point warning satellite DSCOVR offers only 15–60 min lead time; SMILE data aim to extend forecasts by mapping the full magnetopause geometry for the first time.

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