Wrong units
The 370 light year typo is already reported to the author.
Probably meant to say 370 parsecs...
The name's boring but the science isn't: an entire galaxy spied by the Hubble Space Telescope is acting as a microwave-emitting laser, or maser. Think of the process going on here: in a laser, molecules in a crystal are stimulated to add energy to electrons, and when they shed that energy, they emit coherent light (or, at …