Explorer 1 Overview – first US satellite
Explorer 1 was the first U.S. satellite, launched on January 31, 1958. It discovered the Van Allen radiation belts, which are zones of charged particles trapped by Earth's magnetic field.
Explorer 1 was the first U.S. satellite, launched on January 31, 1958. It discovered the Van Allen radiation belts, which are zones of charged particles trapped by Earth's magnetic field.
The author woke up at 4:30 am with an essay forming in their mind. Since their laptop was nearby in the hotel, they got up to write down the sentences they already had. Two hours later, they had written the entire essay.