- Central District, Seattle (Wikipedia)
The Central Area, commonly called the Central District or The CD, is a mostly residential district in Seattle located east of downtown and First Hill (12th Avenue and Rainier Avenue); west of Madrona, Leschi and Mt. Baker; south of Capitol Hill, and north of Rainier Valley. Historically, the Central District has been one of Seattle’s most racially and ethnically diverse neighborhoods, and was once the center of Seattle’s black community and a major hub of African-American businesses.
- Planetary nebula (Wikipedia)
A planetary nebula is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives.