More than 500 million people on three continents are united by the world's largest sea, the Mediterranean. Our strategic geographic location and the shared history gives us a common character and common challenges. Mediterranean Researchers' Night - MEDNIGHT objective is to generate a Mediterranean unity, providing awareness about common problems, fostering scientific careers, reinforcing researchers’ commitment and progress, and putting science and scientists at the cornerstone of our future and a relevant matter. MEDNIGHT shows the attractiveness and importance of the researchers’ work and professions to the general public, and specially for girls and boys, carrying out a series of activities framed under the common umbrella of what we have come to call “Mediterranean Science” placing particular emphasis on youngsters and female researchers and showing the potential of R&D as a source of progress and well-being. Mediterranean Science relates to research developed in the our territories but also the countless collaborations with other EU researchers. Mediterranean Science is focused on Mediterranean relevant topics according to our culture, way of life or current challenges: Sea and pollution, Climate and clean energies, Diet and nutrition, life and Health. Many online and face-to-face diverse activities are organised by MEDNIGHT consortium in Valencia, San Juan, Orihuela, Torrevieja, Messina, Lesvos, Nicosia, Istanbul (Main cities), and also Lliria, Santa Pola, Limnos, Rhodes, Syros Eyupsultan, Kadikov, or El Cairo, among others (Satellite cities).