← GloriaPhysci Test
4 Written Questions
3 Multiple Choice Questions
- a collection of stars, dust, and gas bound together by gravity.
- a group of star or galaxies bound by gravity.
- the distance that light travels in one year; about 9.5 trillion kilometers.
3 True/False Questions
Star → a large celestial body that is composed of gas and that emits light; the sun is a typical star.
Interstellar Matter → a group of star or galaxies bound by gravity.
Black Hole → an object so massive and dense that not even light can escape its gravity.