Deep Space, Deep Earth, Deep Sea and Polar Research
- Orbital Plane
All the planets, asteroids, meteoroids, and comets in the solar system orbit the sun. This is called heliocentric orbit.
Almost all these bodies also travel in the same orbital plane, a thin disk surrounding the sun and extending to the edge of the solar system. The orbital plane usually prevents planets or other celestial bodies from bumping into each other.
Some comets orbit outside the orbital plane, perpendicular or at an angle to the rest of the solar system bodies.
[More to come ...]