Ответ:

1.Spacesuit.2.telescope.3.space station.4.planet.5.alien

1. Astronauts must wear this in space. Spacesuit.  

2. It helps you to see planets through the telescope.  

3. It's a place where people live and work in space space station.    

4. Mars is a Red planet.  

5. A being from another planet alien.