UK astronaut Tim Peake KG5BVI has finished his training and has now entered the quarantine period before his launch, on Tuesday, December 15.
Have you decided how you will celebrate the launch? You can join in at events around the country or tune in at home, in school or at work.
There are four national launches in Belfast, Cardiff, Edinburgh and London with 16 local Science and Discovery centres holding launch events around the UK.
BBC One will be televising the launch starting at 10.30 with a special one off Blast Off Live: A Stargazing Special programme presented by Professor Brian Cox and Dara Ó Briain from the Science Museum London. The hatch opening and Tim’s first moments on the International Space Station will be shown on BBC Two from 7pm.
UK students to have direct contact with astronaut Tim Peake KG5BVI during Principia mission