This is why the best place to see the northern lights is in the arctic. Sometimes the Sun becomes very active and sends out even more energetic solar wind particles. This is when people in the UK can see the northern lights (although only if it is a clear night). People in Scotland have the best chance. Solar storms are sometimes reported on the news, or you can look at websites like Aurora Watch to find out when one might be on it's way.
Popular reasons for why people are choosing to rent rather than buy have been widely reported: Some Americans remain concerned about home prices falling more, while others remain uncertain about the stability of the job they have. And for some, tighter credit standards for mortgage loans have been a factor.
For example, an elderly man who can no longer live in his home might sell the home and use the proceeds to buy a home for himself and his son and daughter-in-law, with the father holding a life estate and the younger couple as the remaindermen.