15 cool things about planets

15 cool things about planets 1. Later this summer NASA will send perseverance a rover that's like a science lab on wheels to Mars 2. A planet is a large body of rock, gas, and other material that travels around a star (like the sun). 3. Europa, one of Jupiter's 79 moons has a slaty, ice_covered ocean that's almost 10 times deeper than Earth's oceans. 4. Earth is the only planet in our solar system not named for a Greek or Roman god or goddess. 5. Neptune might have oceans of liquid diamond. 6. Jupiter is our solar system's biggest planet all 7 other planets can fit in inside of it. 7. Uranus has only 2 seasons summer and winter each lasts 42 earth years. 8. The clouds on venus rain sulfuric acid. 9. Saturn has a solid core about the size of the Earth. 10. The earth moves around the sun at 67,000 miles an hour that's more than 100 times the speed of the fastest jet. 11. Because its closest to the sun mercury has the shortest year of our solar system's p...