NASA | SDO's Helioseismic and Magnetic Imager (HMI)

The video discusses the sun's influence on space weather, affecting satellites, astronauts, and Earth's systems. It highlights the importance of understanding the sun's magnetic field and how it contributes to space weather. The Helioseismic and Magnetic Imager (HMI) is introduced as a tool to study the sun's interior and magnetic field, similar to how earthquakes help us understand Earth's interior. The video emphasizes the need to map the sun's magnetic field comprehensively, not just focusing on active regions, to better predict space weather impacts.

What are active regions on the sun and why are they important?

Discuss the advancements in understanding the sun's magnetic field and its implications.