Clusters of galaxies ... Between the stars, there can be vast interstellar clouds of gas and dust. Spiral galaxies have a thin, pancake-shaped disk, with a spherical bulge at the center.
MANILA, Philippines — The cloud cluster being monitored outside the Philippine area of responsibility (PAR) may develop into a low pressure area (LPA), the Philippine Atmospheric, Geophysical ...
and—perhaps most intriguing—why are the millions of stars in any one of these dense clusters radically different in composition? After all, they must have been born in the same dust cloud.