Science Vocab 4

path an object in space fallows as it revolves around another object

million or billions of stars held together in a group by their own gravity

space and all the matter and energy in it

energy that travels across distances as certain types of waves

radiation from a source separated into a range of wavelengths; the range of colors that appear in a beam of visible light

the distance between one peak and the next peak in a wave

type of telescope that has a curved metal surface, called a dish, that gathers radio waves and focuses them onto an antenna

type of telescope that has a curved mirror that gathers light and reflects the image off a second mirror to the eyepiece

type of telescope that has an objective lens that gathers light and focuses it to the end of the tube where the eyepiece is located

the sun and its family of orbiting planets, moons, and other objects