a small rocky object that surround moves around the sun
an imaginary line which runs through both poles of a planet
a small mass of dust and ice that orbits the sun in a long, oval-shaped path
planets which are large spheres made up mostly of gases---for example, Jupiter, Saturn, Uranus, and Neptune
the planets closest to the sun; Mercury, Venus, Earth, and Mars
the path that an object such as a planet makes as it revolves around a second object
the planets fartherest from the sun; Jupiter, Saturn, Uranus, Neptune, and Pluto
one of the different shapes the moon seems to have as it orbits around Earth
a large object that moves around a star
the movement of any object in an orbit, such as Earth moving around the sun
the motion of a planet or other object as it turns on its axis
an object that moves around another object in space; the moon is a satellite of Earth
a group of objects in space that move around a central star
an uncrewed space vehicle that carries cameras, instruments, and other research tools
a huge, burning sphere of gases; for example, the sun
a device people used to observe distant objects with their eyes
the different appearances of the moon caused by the moon's orbit around Earth, new moon, crescent moon, quarter moon, gibbous moon, and full moon
the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun
one of the natural periods into which the year is divided by the equinoxes and solstices or atmospheric conditions, caused by tilted axis of the Earth.
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.