Topic 10 Solar System Crossword

the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.
The star at the center of our solar system
a celestial body moving in an elliptical orbit around a star.
The energy transferred through space by electromagnetic waves.
400-700 nm, the portion of the EM spectrum that is visible to the human eye
Horizontal distance between the crests or between the troughs of two adjacent waves
A large cloud of dust and gas in space
A contracting cloud of gas and dust with enough mass to form a star
the blue-white hot core of a star that is left behind after its outer layers have expanded and drifted out into space
the brilliant explosion of a dying supergiant star
a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
All of space and everything in it
the distance light travels in one year