The sunspot, known as AR3038, doubled in size between Sunday and Monday night.
Now, it has turned to face the Earth, sparking fears that rapid solar winds could pelt towards the Blue Planet.
Experts at Spaceweather.com explained: “Yesterday, sunspot AR3038 was big.
“Today, it’s enormous. The fast-growing sunspot has doubled in size in only 24 hours.
“AR3038 has an unstable ‘beta-gamma’ magnetic field that harbors energy for M-class solar flares, and it is directly facing Earth.”
This is a breaking story. More to follow.