Organs often have fluid-filled spaces called lumens, which are crucial for organ function and serve as transport and delivery ...
Organs often have fluid-filled spaces called lumens, which are crucial for organ function and serve as transport and delivery ...
The celestial object described is an open cluster, NGC 7789, possessing an apparent magnitude of 6.7 and located between 5th-magnitude Sigma Cassiopeiae and 6th-magnitude Rho Cas, known by several ...