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.
The SEP stands for simplified employee pension. It is an individual retirement account or IRA, into which employers can make retirement contributions for themselves and their employees. Compared a 401(k) retirement plan, a SEP IRA is relatively simple to start and manage. There's far less paperwork and annual filing. Plus, annual contribution limits are much higher than you'll find in most other retirement plans. As with other tax-advantaged retirement plans, contributions to a SEP IRA can be invested tax-deferred until the money is withdrawn at retirement, beginning at age 59 1/2 and no later than age 70 1/2.