A quasar is believed to be a supermassive black hole surrounded by an accretion disk. An accretion disk is a flat, disk-like structure of gas that rapidly spirals around a larger object, like a black hole, a new star, a white dwarf, etc.
Category: Special Enrollment Periods SEP. In certain situations, people with Medicare may be eligible for a Special Enrollment Period (SEP) allowing them to join a Medicare Advantage plan or Medicare Part D prescription drug plan, or switch to a different Medicare plan during the plan year.
An SEP is a qualified retirement plan set up as an individual retirement arrangement (IRA) in an employee's name. You can establish an SEP for yourself if you own a small business, or you may participate as an employee if you work for a company that sponsors such a plan.