Solar System and the universe

The sun, planets, their moons and a variety of smaller objects

• Solar System

• Sun

• Planet

• Moon

A gaseous body much bigger than anything else in our solar system

• Solar System

• Sun

• Planet

• Moon

Round, orbits the sun, and has cleared out the region of the solar system along its orbit

• Solar System

• Sun

• Planet

• Moon

A natural satellite or celestial body in orbit

• Solar System

• Sun

• Planet

• Moon

The average distance measured from the center of the sun to the center of the Earth, which is about 150,000,000 kilometers

• Asteroid

• Meteoroid

• Comets

• Astronomical Unit

small, mostly rocky bodies, many of which are found in an area between the orbits of Mars and Jupiter

• Asteroid

• Meteoroid

• Comets

• Astronomical Unit

Chunks of rock or dust smaller than asteroids. When entering Earth's atmosphere, their friction with the air creates heat that produces a streak of light

• Asteroid

• Meteoroid

• Comets

• Astronomical Unit

Loose balls of ice and rock that usually have very long, narrow orbits.

• Asteroid

• Meteoroid

• Comets

• Astronomical Unit

The energy transferred through space by electromagnetic waves

• Electromagnetic Radiation

• Visible Light

• Spectrum

• Wavelength

The range of wavelengths of electromagnetic waves

• Electromagnetic Radiation

• Visible Light

• Spectrum

• Wavelength