Space

4. Known for its stunning ring system, Saturn is a gas giant primarily composed of hydrogen and helium, with dozens of moons, including Titan, the second-largest moon in the solar system.
6. The largest planet in the solar system, Jupiter is a gas giant with a massive atmosphere of hydrogen and helium. Its famous Great Red Spot is a giant storm.
8. Often called the "Red Planet" because of its iron oxide-rich soil, Mars has the largest volcano in the solar system, Olympus Mons, and evidence of past water.
9. Stars are massive, glowing spheres of hot gas, primarily made of hydrogen and helium. They generate energy through nuclear fusion, which powers their light and heat.
10. Known as Earth’s "sister planet" due to its similar size, Venus has a thick, toxic atmosphere filled with carbon dioxide and sulfuric acid clouds. It’s extremely hot due to a runaway greenhouse effect.

1. The smallest planet and closest to the Sun, Mercury has extreme temperature variations and no atmosphere to speak of. It has a cratered surface similar to the Moon.
2. The only known planet with liquid water and life. Earth has a breathable atmosphere, diverse ecosystems, and a moderate climate.
3. is an event that occurs twice a year, when the Sun is directly above the Earth's equator. During an equinox, day and night are approximately equal in length all over the planet.
5. An ice giant with a unique tilt, Uranus rotates on its side. It has a cold, bluish appearance due to methane in its atmosphere and a faint ring system.
7. The farthest planet from the Sun, Neptune is an ice giant with strong winds and a deep blue color. It has 14 known moons, including Triton, which has geysers that spew nitrogen.