Three newly found planets could support life
Step counting apps 'could be harming people'
Search engines crack down on piracy websites
Plan to trap ship in ice to cross North Pole
Commercial space flights from UK under new plans
Banned talking doll 'not espionage device'
Scientists find way to erase painful memories
Moonshot launchpad used as SpaceX blasts off
Ancient microbes from Hell found in crystals
Woolly mammoth embryo 'two years away'