This period, called 'solar maximum', is characterised by increased sunspot activity ... also highlights the importance of long-term solar observations. As Dr. Howe noted, "With more data, I ...

Richard Carrington’s observation of the sunspot cluster responsible for the 1859 storm. As we’ve discussed, the solar cycle has been in operation since time immemorial, and every eleven years ...

It originated from the same sunspot that hurled out another X2.8 solar flare on December 14. Now, another X-class solar flare danger has been observed by NASA. Know all about this solar storm ...