Saturn is huge. It is the second largest planet in our Solar System. Jupiter is the only planet that is bigger. You cannot stand on Saturn. It is not like Earth. Saturn is made mostly of gases. It has a lot of helium. This is the same kind of gas that you put in balloons.
The acronym “NASA” stands for National Aeronautics and Space Administration. The term “aeronautics” originated in France, and was derived from the Greek words for “air” and “to sail.” The Altus II unmanned robot plane can circle for up to 24 hours over wildfires, beaming images and data back to computers via satellite. Originally introduced as