Scientists from the Bulgarian Space Research Institute claim aliens are currently answering 30 questions posed to them.
Lachezar Filipov, deputy director of the Space Research Institute of the Bulgarian Academy of Sciences, confirmed the research. He said the centre's researchers were analysing 150 crop circles from around the world, which they believe answer the questions.
"Aliens are currently all around us, and are watching us all the time," Mr Filipov told Bulgarian media. "They are not hostile towards us, rather, they want to help us but we have not grown enough in order to establish direct contact with them."
Mr Filipov said that even the seat of the Catholic church, the Vatican, had agreed that aliens existed.