Le vol pour l'ISS avec l'astronaute française Sophie Adenot aura lieu au plus tôt le 11 février, annonce la Nasa AFP
Take Off Challenge for the Classroom Rainbow in a test tube: make a density cocktail! Are you a teacher and want to talk to your class about density? Then this challenge is ideal: the goal is to make a cocktail with as many clear layers as possible. FNR, ALF
