Astronomer David Osario used a mini printer to propose to his fiance, Saydi Rodriguez by printing the question on the lens of his telescope to make it appear like its written on the moon.
The 27-year-old said that as they had spoken about getting married, he wanted the proposal to be "romantic, with a hint of geeky", Metro.co.uk reported.
His 26-year old fiance Rodriguez admitted that she was very surprised and is thrilled to be spending the rest of her life with Osario.
