Le 31 janvier 1958, les États-Unis entrent dans la course à l'espace avec le lancement d'Explorer 1, qui marquera la naissance des sciences spatiales. Pour en savoir plus, rendez-vous sur http://science.nasa.gov/. Site d'Explorer 1 : https://www.jpl.nasa.gov/missions/explorer-1/ Livre sur Explorer 1 : https://www.jpl.nasa.gov/about/downloads/Explorer1.pdf Pour plus de vidéos, cliquez ici : https://alugha.com/NASA
Visit http://science.nasa.gov/ for more. Earth is surrounded by electrons that can be disruptive to our technology. NASA is using high-altitude balloons and spacecraft to monitor and understand these particles in the radiation belts surrounding our planet. Click here to see more videos: https://al
Explore how astronomers and scientists use astronomical units to measure distances in the solar system in this video adapted from NASA. The astronomical unit (au) -- equal to the average distance from Earth to the Sun -- is a convenient unit of measure when talking about distances in the solar syste
