Computer simulations of this impact show that both of the objects would melt in the impact and the dense core of the impactor would fall as molten rock into the liquefied iron core of Earth.

Along with the cluster's dense core, the outer reaches of M13 are highlighted in this sharp color image.

Although markers for both small vesicles and large dense core vesicles are found in astrocytes, the identity of vesicles undergoing exocytosis has been largely unclear.