First, let’s discriminate between expansion and expulsion. Expansion happens because the thermal pressure from the increased energy production in the Sun’s interior exceeds the gravitational force ...
Image of the Sun taken from the Solar Dynamics Observatory satellite, showing the quiet corona and magnetic structures like coronal loops, which trace the intricate patterns of magnetic field lines ...
Puffed-up Sun. Data from inside the Sun’s corona — the outermost layer of its atmosphere — helped astrophysicists to create a sharper picture of the Sun’s shifting boundaries than ever before. The ...