[Renzo Mischianti]’s friend has to keep a water tank topped up. Problem is, the tank itself is 1.5 km away, so its water level isn’t typically known. There’s no electricity available there either — ...

When a low-level sensor in Discovery’s propellant tank malfunctioned during Wednesday’s countdown, mission commander Eileen Collins must have had that “déjà vu” feeling. And she would have had no ...