NASA’s Parker Solar Probe recently captured images during its closest approach to the Sun in December 2024, shedding light on the intricate workings of solar magnetic fields that drive space weather. These magnetic fields can sometimes escape from the Sun, influencing phenomena like coronal mass ejections (CMEs) that have the potential to disrupt technologies on Earth, such as GPS, and pose risks to astronauts and spacecraft in space.
Published in the Astrophysical Journal Letters, the images from the Parker Solar Probe show that not all magnetic material from a CME manages to leave the Sun; some of it returns, impacting the shape of the solar atmosphere and setting the stage for future CME events. This discovery has significant implications for understanding how the release of magnetic fields during CMEs affects not just Earth, but also other planets and the Sun itself.
“These breathtaking images, taken closer to the Sun than ever before, are enhancing our knowledge of our nearest star,” noted Joe Westlake, heliophysics division director at NASA Headquarters. Understanding these dynamics is crucial for predicting and preparing for space weather, especially for ensuring the safety of astronauts on missions beyond Earth’s protective atmosphere, like the Artemis program.
Original Source: NASA