Readings from Green Bank Telescope detect cloud made of cold hydrogen gas inside bubbles of superheated plasma.

The Fermi bubbles were discovered in 2010 by NASA’s Fermi Gamma-ray Space Telescope. The two orbs form an hourglass structure ...

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Researchers studying the Milky Way’s center have discovered unexpected cold hydrogen clouds nestled inside the Fermi bubbles, ...

Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold ...