Magnetic fields

Magnetic fields around the Milky Way could shed new light on the big bang

NASA/SOFIA; Star field image: NASA/Hubble Space Telescope

Astronomers are on the hunt for magnetic fields in our galaxy that were born in the very early universe, because they could provide a new way to study the big bang.

“We’re not solving the puzzle of these fields but we’re kind of opening that door,” says Sergio Martin-Alvarez at the University of Cambridge.

Magnetic fields are thought to play an important role in star formation within galaxies, and the Milky Way is home to various types …