By day, a row of plain-looking sheds in sleepy Rockwood, Texas, looks like nothing more than a place to store farm tools and feed. But when the sun dips below the horizon, their roofs peel back in unison to reveal a hidden network of hundreds of telescopes.  The so-called telescope farm is the brainchild of amateur astronomer Bray Falls, who turned his passion into a business when he co-founded the company Starfront Observatories 18 months ago. "It has not gotten old yet. It's so cool, every