Astronomers using the Green Bank Telescope spotted surprisingly cold, dense hydrogen clouds embedded inside the Milky Way’s vast, super-hot Fermi bubbles—structures thought to be created by a recent, ...

A surprising discovery at the heart of the Milky Way is forcing scientists to rethink how massive structures called Fermi ...

Back in 2010, scientists spotted something shocking: a pair of gigantic, glowing lobes of gas bursting from the Milky Way’s ...