A chance to hear from the second man to step foot on the moon, astronaut Buzz Aldrin, who will be at the Science Museum later this month.
Aldrin was selected by NASA in 1963 into the third group of astronauts and on 20 July 1969 made history with Neil Armstrong during their Apollo 11 moonwalk, becoming the first two humans to set foot on another world.
He is almost as famous for punching a moon-landing conspiracy nut.
Professor Brian Cox will be in conversation with him on Sunday 28th Feb at 2pm.
The event will include an opportunity for the audience to ask questions and Aldrin will also be signing copies of his latest books.
Tickets cost £10 and go on sale at 10am on Friday 12th February via the Science Museum website