Very little is known about the extraterrestrial known as the Astronomer before his recent involvement in the Elder's plot to destroy the abstract entity, Galactus, and thus our universe. It as the Astronomer who helped the Grandmaster devise their plot against Galactus. Long ago, he chose to dedicate himself to chronicling the slow evolution of the stars and galaxies themselves. He long ago lost interest in living beings, which may explain why he went undiscovered for so long.
The Astronomer studies the very nature of the universe, he was the architect of the plan to kill Galactus.
