Today a total solar eclipse will pass over tens of millions of people in a 70-mile-wide swath across the United States about 2,500 miles long. It’s been 99 years since an eclipse has crossed coast to coast, and there are a lot more people around to see it this time. It starts in Oregon around noon our time, travels across 14 states, and finishes up its continental tour in South Carolina around 10 minutes before 3:00 this afternoon. Here in Eastern Massachusetts, we’ll see about a 63 percent