Tonight, you'll meet a bunch of cute physicists who are willing to delve deep into the Earth to solve the mysteries of that invisible stuff known as dark matter. Just call them the Dark Matter Detectives. Later, you'll meet a motorcycle-riding computer scientist who who has created specialized software to generate photographic forgeries and fakes. Yes, NOVA's awesome science magazine show Science Now is back, returning for a run on Wednesday nights this summer. This is my favorite science show that doesn't have "mega" in the title. [Science Now]