| A | B |
|---|
| Deep Space | The area of space outside our solar system |
| Why are people interestd in space exploration? | Exploring space helps understand how our world began, there could be life out there and space contains many beautiful features |
| What does galaxy mean? | A system made up of millions or billiions of stars, held together by gravity |
| How do stars differ? | They can be different in size, color, temperature, brightness and life span |
| Which deep space features can form when a star explodes? | black holes and supernovas |
| Which deep space feature is not a type of star? | a. cluster b. dwarf c. giant d. supergiant |
| A light-year is a measurement of ___ | distance |
| outfield:field:exoplanet:___ | planet |
| What is the big bang theory? | It is a theory that the universe was formed from a single, explosion |
| Do stars go through a life cycle? | Yes |
| Astronomers | Scientists who studies stars |
| black hole | a region of space with a gravitational field so intense that nothing can escape it |
| cluster | close groups of similar objects |
| exoplanet | any planet that exists outside our Solar Systems |
| luminosity | a measure of the amount of reflected light |
| nebula | a region of interstellar dust or gas appearing as a bright patch |
| orbit | to revolve around another object |
| solar system | a star and the celestial bodies that revolve around it |
| stars | bodies in outer space made of hot gases |
| cosmologists | scientists that study the origins of the universe |
