انقر هنا لمشاهدة مزيدٍ من الفيديوهات: https://alugha.com/NASA يمكنك زيارة http://science.nasa.gov/ لمزيد من المعلومات. اخرج في مساء الثامن عشر من مارس، ألفين وثمانية عشر لمشاهدة الهلال والزهرة وعُطارد معًا فوق أفق الشفق.
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
NASA's OSIRIS-REx spacecraft is scheduled to launch on a mission to orbit, map and collect samples from the asteroid Bennu, and return to Earth 7 years later. OSIRIS-REx: http://www.asteroidmission.org/ Visit http://science.nasa.gov/ for more Click here to see more videos: https://alugha.com/NASA
