According to @spaceweather, it's been many years since there were 6 sunspots visible at once. Solar cycle 25 continues to heat up. pic.twitter.com/F9oFiQecDP— Eric Fisher (@ericfisher) July 23, 2021
According to @spaceweather, it's been many years since there were 6 sunspots visible at once. Solar cycle 25 continues to heat up. pic.twitter.com/F9oFiQecDP