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.
Aurora originated in the 1880s as the town of Fletcher, taking its name from Denver businessman Donald Fletcher who saw it as a real estate opportunity. He and his partners staked out four square miles (10 km2) east of Denver, but the town - and Colorado - struggled mightily after the Silver Crash of 1893.