Astronomy Notes 2 Crossword

Therory that our solar system began as remnants of another star
Heavier solid elements collect in areas near the protostar and begin to accrete, or build up matter by colliding and combining with other particles
Inner Planets; small (relatively) and rocky.
Outer Planets; Huge planets with small rocky core, most of mass is gas
Bodies that don't qualify as planets based on 3 criteria: Orbit the sun, is naturally sphereical, has an ability to "clear it's neighborhood
random tiny rocky bodies orbiting the sun
Bodies of ice and rock that holds clues about the formation of the solar system
Frozen nucleus, glowing coma is vaporized gases, and two tails
meteoroids that enter and burn up in Earth's atmosphere
any small solid particle traveling through space, sometimes used to help determine the age and origin of the solar system.
Meteoroids that do not completely burn up and reach Earth's atmosphere
a region of the solar system beyond the orbit of Neptune, believed to contain many comets, asteroids, and other small bodies
a circular shell of cometary bodies believed to surround the sun far beyond the outermost planets
the range of wavelengths or frequencies over which electromagnetic radiation extends
branch of science that investigates and measures the spectra produced when matter interacts with or emits electromagnetic radiation
continuos flow of charged particles from the sun that permeates the solar system
explosions of radiation escaping from the sun, causing surges in solar wind.