Earth: Measuring Up
Posted: Fri Jan 15, 2021 2:57 am
Source: NASAIf the Sun were as tall as a typical front door, Earth would be the size of a nickel.
Source: NASAIf the Sun were as tall as a typical front door, Earth would be the size of a nickel.
Source: NASAEarth orbits our Sun, a star. Earth is the third planet from the Sun at a distance of about 93 million miles (150 million km).
Source: NASAA day on Earth is 24 hours. Earth makes a complete orbit around the sun (a year in Earth time) in about 365 days.
Source: NASAEarth is a rocky planet with a solid and dynamic surface of mountains, canyons, plains and more. Most of our planet is covered in water.
Source: NASAEarth's atmosphere is 78 percent nitrogen, 21 percent oxygen and 1 percent other ingredients—the perfect balance to breathe and live.
Source: NASAEarth has one moon.
Source: NASAEarth has no rings.
Source: NASAMany orbiting spacecraft study the Earth from above as a whole system—observing the atmosphere, ocean, glaciers, and the solid earth.
Source: NASAEarth is the perfect place for life as we know it.
Source: NASAOur atmosphere protects us from incoming meteoroids, most of which break up in our atmosphere before they can strike the surface.