A few selected Facebook users have recently spotted a new ‘rocket ship’ button in their mobile app, alongside the News Feed button.It appears differently on IoS or Android but tends to be at the top or bottom of most menu bars. It effectively seems to be a second feed of content Facebook thinks you might enjoy which is currently in a trial version. It will be based on pages and content you have shown an interest or affinity too but without that necessarily meaning that they are pages you have directly ever engaged with. This content will be carefully curated and chosen by Facebook for you rather than by yourself. A Facebook spokesperson told WIRED: “We are testing a complementary feed of popular articles, videos, and photos, customised for each person based on content that might be interesting to them. We’ve heard from people that they want an easy way to explore…