Boston, MA 022210 The first Yemeni liquified natural gas tanker, the Maran Gas Coronis, arrived at Boston in the early morning hours of February 22, 2010 under heavy law enforcement escort. The ship, the first of as many an the expected number of 30 per year, was in route to the Distrigas of Massachusetts LLC (DOMAC) docking facility in Everett, MA. (Essdras M Suarez/ Globe Staff)BEHIND THE SCENES' STORY: After having been a photojournalist for almost 15 years you tend to think that you've pretty much have seen it all. Yet last night while I was chasing this behemoth as it made its way through the Boston Harbor waterways I found myself giddy with excitement since I'd never seen anything like this. On a side note,it was very exciting too: the reporter and I were stopped six times by different police officers. We also had the US Coast Guard helicopter and vessel spotlights put on us. TECH INFO: This is a testament to the light- sensibility range of the new cameras. Some of these images were shot at 12,000 ISO.