A ‘hole’ 30 times Earth’s size has spread across the sun, blasting solar winds that’ll hit our planet by end of this week

• The sun is sporting a giant coronal hole that could fit 20-30 Earths across, back-to-back.

• Coronal holes blast rapid solar winds into space that travel 500-800 kilometers per second.

• The relatively-harmless winds should reach Earth by Friday for a more stunning aurora.

A giant black region on the sun, called a coronal hole, was spotted on Monday by NASA’s Solar Dynamics Observatory.

Despite the name, however, this isn’t a physical hole in the solar surface. Coronal holes…