Our weekly news round-up: New Sino-Russian space alliance; Massive coral bleaching prompts scientists' plea; Silicon nano particles for non-stick plastic; VW offers Aussie diesel customers software update; Google Buys Webpass and merges it with Google Fiber; US Customs wants access to social media profiles at border crossings; Elon Musk to develop a domestic cleaning AI robot; Coinbase offers an online secure way to buy bitcoin; Netflix will allow video downloads for mobile users; MS claims its Edge browser uses less battery life than others; ATO scam tricks people into paying unpaid tax to bogus accounts.