Japan’s space agency said on Thursday that its first lunar mission hit the tiny patch of the moon’s surface it was aiming for, in a successful demonstration of its pinpoint landing system, although the probe appears to be lying upside-down. The Smart Lander for Investigating Moon, or SLIM, touched down on the Moon early on Saturday. But trouble with the probe’s solar batteries made it hard at first to figure out whether the probe landed in the target zone. While most previous probes have used landing zones about 10 kilometres wide, SLIM was aiming at a target of just 100 metres. Improved accur…