What are the flame like structures that extend from chromosphere?

The flame-like structures that extend from the chromosphere are known as solar prominences. These are large, bright features that rise above the solar limb and are anchored to the Sun's surface by magnetic fields. Prominences consist of dense, cool gas that can extend thousands of kilometers into space and often appear in loop or arch shapes. They are associated with solar activity and can erupt, leading to coronal mass ejections.