Our weekly news round-up: Melbourne University study of baby Tasmanian tigers reveals when they developed their similarities to dogs; LRO data suggests the moon has water all over it; Opportunity rover's 5000 days on Mars; Refunds for those caught up in Western Union scams; SA government promises $30m NBN speed boost for Adelaide; AI can diagnose diseases from retina scans; Almost 1.5b smart phones sold in 2017!