- B-type star (Wikipedia)
B-type stars are very luminous and blue. Their spectra have neutral helium lines, which are most prominent at the B2 subclass, and moderate hydrogen lines. As O- and B-type stars are so energetic, they only live for a relatively short time. Thus, due to the low probability of kinematic interaction during their lifetime, they are unable to stray far from the area in which they formed, apart from runaway stars.
- Minnesota River (Wikipedia)
The Minnesota River (Dakota: Mnísota Wakpá) is a tributary of the Mississippi River, approximately 332 miles (534 km) long, in the U.S. state of Minnesota. It drains a watershed of 14,751 square miles (38,200 km2) in Minnesota and about 2,000 sq mi (5,200 km2) in South Dakota and Iowa.