Astronomers have discovered a rare group of five dwarf galaxies located relatively close to Earth; these galaxies exist in a near-perfect alignment, resembling a string of cosmic pearls in the sky.
Held together by their mutual gravity, several of the dwarf galaxies (designated D1 to D5) are rhythmically dancing with one another while others are engaged in a "cosmic tug of war," ripping gas and stars away from each other.
