Different types of benign, or noncancerous, adrenal tumors prove a frequent cause of enlargement of the gland. Adrenal adenomas remain the most common type of benign adrenal tumors, representing over 50 percent of adrenal masses. Uncommon benign adrenal tumors include adrenal cysts and lipomas, or fat-derived tumors.
The Sun provides the energy for the aurora, but particles in the. aurora come from Earthâs own neighborhood in space. The Sunâs. energy is carried toward the Earth in the solar wind, a stream of. electrically charged particles (mostly protons and electrons) ïow-. ing out from the Sun in all directions.
How the Aurora Borealis occur. 1  The Northern Lights are caused by the interaction of the solar wind-a stream of charged particles escaping the Sun-and our planet's magnetic field and atmosphere. When these field lines snap back into position, charged particles from the solar wind are again pushed into the Earth's atmosphere, causing aurora. 2  The more magnetic field lines that disconnect and snap back, the further south the Northern Lights can be seen.