... Launch of a Delta IV Heavy . ... The Delta IV Heavy is the largest of the Delta series, packing the punch of three rocket boosters instead of the usual one. ... Contemplating the Sky . ... Tonight will be a good one for midnight meditators at many northerly locations as meteors from the Geminids meteor shower will frequently streak through. ... Intrepid Crater on Mars . ... The robotic rover Opportunity has chanced across another small crater on Mars. ... Too Close to a Black Hole . ...