The north-south velocity associated with the retrograde propagating mode of oscillation. Left: observations using the SDO/HMI instrument. Right: numerical model. Credit: MPS/Z-C Liang Ten years of data from NASA’s Solar Dynamics Observatory combined with numerical models reveal the deep low musical notes of the Sun. These motions were measured by analyzing […]

ANIMATION The visible surface of the Sun, or the photosphere, is around 6,000°C. But a few thousand kilometers above it – a small distance when we consider the size of the Sun – the solar atmosphere, also called the corona, is hundreds of times hotter, reaching a million degrees celsius or […]

Two groups of fibrils, marked L2 and L4, converge and reconnect with each other. Two sets of newly formed fibrils, marked L1 and L3, then appear and retract from the reconnection region. Credit: LI Leping   ENLARGE Magnetic reconnection refers to the reconfiguration of magnetic field geometry. It plays an elemental […]

Earth’s magnetic field protects us from the solar wind, guiding the solar particles to the polar regions. SOHO (ESA & NASA) Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change. If you have a question you’d like […]

Parker Solar Probe observed switchbacks — traveling disturbances in the solar wind that caused the magnetic field to bend back on itself — an as-yet unexplained phenomenon that might help scientists uncover more information about how the solar wind is accelerated from the Sun. Credit: NASA’s Goddard Space Flight Center/Conceptual […]