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27 April 2021Computer simulations show that the miniature solar flares nicknamed ‘campfires’, discovered last year by ESA’s Solar Orbiter, are likely driven by a process that may contribute significantly to the heating of the Sun’s outer atmosphere, or corona. If confirmed by further observations this adds a key piece to the puzzle of what heats the solar...

10 December 2020Solar Orbiter’s latest results show that the mission is making the first direct connections between events at the solar surface and what’s happening in interplanetary space around the spacecraft. It is also giving us new insights into solar ‘campfires’, space weather and disintegrating comets.

30 September 2020ESA has released its first Solar Orbiter data to the scientific community and the wider public. The instruments contributing to this data release are the Energetic Particle Detector (EPD), the Radio and Plasma Waves (RPW) instrument, and the Magnetometer (MAG). Data from the fourth in-situ instrument, the Solar Wind Plasma Analyser (SWA) will be...

16 July 2020The first images from Solar Orbiter, a new Sun-observing mission by ESA and NASA, have revealed omnipresent miniature solar flares, dubbed ‘campfires’, near the surface of our closest star. “These are only the first images and we can already see interesting new phenomena,” says Daniel Müller, ESA’s Solar Orbiter Project Scientist. “We didn’t...

30 June 2020ESA’s Solar Orbiter has successfully completed four months of painstaking technical verification, known as commissioning. Despite the challenges imposed by the COVID-19 pandemic, the spacecraft is now ready to begin performing science as it continues its cruise towards the Sun.