Tonight, or more likely tomorrow night if skies clear, we might get a glimpse of what could be the year's best meteor shower. The Geminids can whip up 120 meteors per hour under dark skies. The crescent moon sets by 9 p.m. or so, making skies darker. Bright and medium-speed "shooting stars" will seem to spring from the constellation Gemini, rising in the east after dinner. They're dust from a battered asteroid, 3200 Phaethon, which flew by Monday.