Particle.news

ESA’s SMILE Satellite Launches to Map Earth’s Magnetosphere

The mission will track how the solar wind reshapes Earth’s magnetic shield to improve space‑weather forecasting.

Overview

  • SMILE, which launched Tuesday on a Vega‑C rocket from Kourou, reached a roughly 700‑kilometer orbit and deployed its solar arrays, according to ESA.
  • The spacecraft will fire its thrusters over the coming weeks to enter a highly elongated path that swings from about 5,000 to 121,000 kilometers from Earth.
  • The satellite carries four instruments, including an X‑ray imager to capture the otherwise invisible boundary of the magnetosphere and a UV camera to watch auroras for days at a time.
  • ESA is running the three‑year research mission with the Chinese Academy of Sciences, which shares a reported €260 million cost with ESA and supports European teams in Germany, Austria, and Switzerland.
  • Commissioning will take months before data start to flow, and the results could help safeguard satellites and communications by showing how bursts of solar particles disturb near‑Earth space.