![Spiral galaxy Messier 100 (also known as NGC 4321). Credits: "A CATALOG OF DIGITAL IMAGES OF 113 NEARBY GALAXIES", Astronomical Journal. Spiral galaxy Messier 100 (also known as NGC 4321). Credits: "A CATALOG OF DIGITAL IMAGES OF 113 NEARBY GALAXIES", Astronomical Journal.](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/news/prensa1028_1704.jpg?itok=WlYXCSjF)
Astrophysicists at the Instituto de Astrofísica de Canarias (IAC) show for the first time that galaxies which rotate more rapidly or have higher mass also show stronger large-scale and uniform magnetic fields. Their observations question the linear dynamo effect because at the current epoch the magnetic fields have stopped growing.
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