NASA scientists are crisscrossing the globe in 2017 to investigate critical scientific questions about how our planet is changing and what impacts humans are having on it.
NASA's NuSTAR (Nuclear Spectroscopic Telescope Array) recently identified two gas-enshrouded supermassive black holes, located at the centers of nearby galaxies.
The constellation of Virgo is especially rich in galaxies, due in part to the presence of a massive and gravitationally-bound collection of over 1,300 galaxies called the Virgo Cluster.