Journey Into Space is a BBC Radio science fiction program created by Charles Chilton in 1953. The show gained immense popularity and was translated into 17 languages, making it the last UK radio program to have a larger audience than television. The original series included four main characters, Captain Andrew "Jet" Morgan, Doctor Daniel "Doc" Matthews, Stephen "Mitch" Mitchell, and Lemuel "Lemmy" Barnet. Each half-hour episode typically ended with a cliffhanger to entice the audience to tune in for the next installment.

The series began with Journey to the Moon (later known as Operation Luna) in 1953, set in 1965, which was Chilton's prediction for when humans would first walk on the moon. The show's popularity surged as the rocket launched towards the moon, and by the final episode, 8 million people were tuning in. Later series included The Red Planet and The World in Peril.

Although the original recordings were erased, misfiled Transcription Service discs containing copies of the three original series were discovered in 1986. This allowed the BBC to re-broadcast the show and release it on audio cassette, CD, and internet download. Journey Into Space has a loyal fan base, including prominent figures like Stephen Hawking and former Doctor Who producer Philip Hinchcliffe.