Twilight ringed the horizon above the Ob Sea during the August 1 total solar eclipse. Rich Talcott photo The weather forecast for August 1 in Novosibirsk, Russia , didn’t look promising. On the evening of July 31, the most favorable prediction called for partly cloudy skies, while the more pessimistic predicted a 70 percent chance of rain. Fortunately for Astronomy Editor Dave Eicher and me — and more than 150 fellow eclipse chasers with our MWT Associates...