The turbulent youth of the Sun: this is what it was like when it rotated ten times faster than it does today

There was a time when the Sun rotated 100 times faster than it does today. During its infancy (and by infancy we mean when it was about 100 million years old), it rotated 100 times faster than it does today. A Sun destined to change its rotation speedThe Sun's rotation speed has constantly changed throughout its long life. For the first 5 million years after its birth, the Sun rotated at a speed about 50 times faster than it does today. Credit: ESA/NASA/SohoTherefore, the young Sun, which rotated 100 times faster, was much more turbulent than it is today.