Happily gaze at joyful moments all year long with today’s flash-happy Groupon. For $49, you’ll get a two-hour photography session and a photo CD with 25 images from L.A. Scott Photography, a $175 value. Opt to redeem on location (birthday, holiday party, Wizard of Oz reenactment) or in studio for headshots, holiday cards, or internet fan sites. The CD contains retouched, printer-ready images. In 1978, amateur bat photographer Gregory Hansen was in his front yard one night when a mysterious white orb appeared in the sky over his home. Diverting his attention from a particularly active nest of eptesicus fuscus, he began photographing the orb, which made no attempt to flee or conceal itself. Hansen continued to document the orb as it reappeared over his house, each night shrinking slightly “as though passing slowly into the spirit world,” Hansen observed. On particularly cloudy nights, the orb would not be present, prompting Hansen to speculate that ghosts may be allergic to thunder.