CHARLOTTE, USA - MAY 10: A view of an unusual sun activity created a sunspot, that is responsible ... [+] for a G4 Geostorm on Earth, the last time this magnitude happened was 20 years ago in ...
Recently, the colossal sunspot AR3664 has drawn attention for its immense size, reaching proportions comparable to the legendary Carrington sunspot of 1859. NASA has released a composite image ...