The Sun’s atmosphere is way, WAY hotter than its surface — here’s why
3:00am PDT - June 5th, 2021 suns - The Next WebThe 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 milli…