This link has been bookmarked by 9 people . It was first bookmarked on 13 Jun 2008, by someone privately.
"they have observed a longer-than-normal period of solar inactivity. In the past, they observed that the sun once went 50 years without producing sunspots. That period coincided with a little ice age on Earth that lasted from 1650 to 1700. Coincidence? So
environment science nature space astronomy iceage sunspots solar 2012 globalwarming
Dark spots, some as large as 50,000 miles in diameter, typically move across the surface of the sun, contracting and expanding as they go. These strange and powerful phenomena are known as sunspots, but now they are all gone. Not even solar physicists kno
Would you like to comment?
Join Diigo for a free account, or sign in if you are already a member.