Aliens exist and they are living among us, says first British astronaut into space
- For first time, scientists spot an alien planet as it is being formed
- China gets 'promising' early results from COVID-19 vaccine trial
- Australia 'records fastest internet speed ever'
- Bees using secret trick to make plants flower, leaving scientists baffled
- Mark Zuckerberg said he is 'worried' about China setting the agenda for tech regulation