The Apollo missions were NASA’s historic space missions that successfully landed humans on the Moon between 1969 and 1972.Apollo astronauts collected rock and soil samples, conducted experiments, and placed scientific instruments on the lunar surface. These missions proved that humans could safely travel to another world and return to Earth. The data collected during Apollo missions is still used by scientists today to understand the Moon’s origin and Earth’s history. One of the greatest achieve

On Dec. 18, 1999, NASA launched its flagship Terra satellite into Earth's orbit to collect data about Earth's changing climate. Space History Archives👉 https://space-com.visitlink.me/PR6k-A Terra contains five different sensors that monitor Earth's atmosphere, lands, oceans, and radiant energy. The satellite takes several different kinds of measurements that reveal how Earth is changing over time. It also tracks the spread of air pollution. It lifted off from Vandenberg Air Force Base in Califo