Exploring Space

Earth Earth Solar System Solar System Milky Way Milky Way Universe Universe

Path of an object in space around another object due to gravity. (revolve) Path of an object in space around another object due to gravity. (revolve)

You know this. You know this.

A group of millions or billions of stars held together by their own gravity. A group of millions or billions of stars held together by their own gravity.

Is EVERYTHING. Is EVERYTHING.

A group of stars that forms an apparent pattern in the sky. (only visible from earth) A group of stars that forms an apparent pattern in the sky. (only visible from earth)

Telescopes allow us to explore space from Earth c wright 2009

Any device used to collect em radiation Any device used to collect em radiation

Remember the em specturm: Remember the em specturm: – radio waves – microwaves – infrared rays – visible light – ultraviolet rays – x-rays – gamma rays