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Episode Guide
- 1. A Moment in the Sun - The Terrestrial Planets May 28, 2019
- Tracing the development of the four rocky worlds closest to the sun: Mercury, Venus, Earth and Mars.
- 2. S1 E2 Jun 4, 2019
- Brian learns that the solar system was once home to two blue planets.
- 3. S1 E3 Jun 11, 2019
- Brian learns about Jupiter, which uses its size to manipulate other planets.
The Nine Planets is an encyclopedic overview with facts and information about mythology and current scientific knowledge of the planets, moons, and other objects in our solar system and beyond.
- Planets
The Planets of the Solar System Detailed information and...
- Solar System
The gas planets are composed primarily of hydrogen and...
- Objects
Planets for Kids; Buyer’s Guides. Best Astronomy Binoculars;...
- Questions
Frequently asked space questions to help you learn about...
- Buyer’s Guides
Space and Astronomy Product Reviews We review the best...
- The Sun
Similar effects are seen in the gas planets. The...
- Planets
Aug 30, 2017 · Learn facts about the solar system’s genesis, plus its planets, moons, and... How many planets are in the solar system? How did it form in the Milky Way galaxy?
- 4 min
- 32.4M
- National Geographic
Learn about the eight planets and five dwarf planets in our solar system, their sizes, locations, features, and exploration missions. Find out what makes a planet a planet, and whether there is another planet in the solar system.
Learn about the Sun, the star at the center of our planetary system, and the eight planets that orbit it. Discover the features, moons, and history of each planet, and how they compare to other worlds in the universe.
Over 99.86% of the Solar System's mass is in the Sun and nearly 90% of the remaining mass is in Jupiter and Saturn. There is a strong consensus among astronomers [e] that the Solar System has at least nine dwarf planets: Ceres, Orcus, Pluto, Haumea, Quaoar, Makemake, Gonggong, Eris, and Sedna.
Learn about the Sun, the star at the center of our planetary system, and the eight planets that orbit it. Discover the features, moons, and history of each planet, and how they compare to other worlds in the universe.
Learn about the Sun, planets, moons, asteroids, comets, and more in our solar system. Explore the latest news, facts, images, and 3D apps from NASA.