SMILE mission begins its scientific operations and releases its first images of the aurora

The joint SMILE mission between the European Space Agency and the Chinese Academy of Sciences has entered the scientific operations phase, releasing its first images and data from four instruments. The initial releases included a continuous high-resolution ultraviolet panorama of the aurora in the northern hemisphere, captured on July 24, according to the Orbital Radar platform.

The initial results also showed a test image in soft X-rays of supernova remnant N132D in the Large Magellanic Cloud, roughly 160,000 light-years away. The two instruments combine X-ray and ultraviolet measurements to study the interaction of solar wind with Earth's magnetosphere.

The soft X-ray instrument remains under calibration to handle stray light, with teams expecting the first magnetosphere observations around mid-October. This partial postponement represents a standard step in commissioning sensitive instruments after launch, as operating in space requires precise calibration due to thermal changes and radiation.

SMILE is the largest space science collaboration between China and Europe since the Double Star program in 2003, giving the mission a diplomatic dimension alongside its scientific value. Regional researchers are interested in these results as they improve the understanding of space weather affecting satellites and communication systems.

What do these terms mean?

Magnetosphere: A layer surrounding Earth that protects it from particles coming from the Sun. Soft X-rays: High-energy radiation used to image extremely hot objects in space. Supernova: A massive explosion that ends the life of a massive star. Aurora: Lights that appear in the sky of polar regions due to the interaction of solar particles with the atmosphere.