Earth

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 2:57 am

If the Sun were as tall as a typical front door, Earth would be the size of a nickel.

Source: NASA

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 2:59 am

Earth 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: NASA

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 3:00 am

A day on Earth is 24 hours. Earth makes a complete orbit around the sun (a year in Earth time) in about 365 days.

Source: NASA

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 3:01 am

Earth 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: NASA

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 3:01 am

Earth's atmosphere is 78 percent nitrogen, 21 percent oxygen and 1 percent other ingredients—the perfect balance to breathe and live.

Source: NASA

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 3:03 am

Earth has one moon.

Source: NASA

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 3:03 am

Earth has no rings.

Source: NASA

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 3:04 am

Many orbiting spacecraft study the Earth from above as a whole system—observing the atmosphere, ocean, glaciers, and the solid earth.

Source: NASA

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 3:05 am

Earth is the perfect place for life as we know it.

Source: NASA

Joseph Buell · Post by **Joseph Buell** » Fri Jan 15, 2021 3:06 am

Our atmosphere protects us from incoming meteoroids, most of which break up in our atmosphere before they can strike the surface.

Source: NASA

Starship Asterisk*