She has a shy look, and speaks in a small voice that the mask still makes it harder to decipher, but Fatoumata Kebe's ambition is enormous. Doctor in astronomy from the Sorbonne University, astrophysicist and aspiring to one day travel to the Moon, she has visited Barcelona to inaugurate the Kosmopolis festival of the CCCB, which has had as one of its main thematic axes the look at outer space from the point of view of science and literature. Kebe spoke about her first book, The Book of the Moon in which she combines scientific, historical and mythical considerations about the Earth's only satellite.