Space is another very important element in Little Alchemy 2, and it can be used to combine Alien, Astronaut, Galaxy, Meteoroid, Space Station, and Spaceship. To create the Space, you need to make Sun, Sky, Night, and Star first. See the detailed instructions below.
Earth + Earth = Land
Earth + Land = Continent
Continent + Continent = Planet
Fire + Planet = Sun
Air + Planet = Atmosphere
Sun + Atmosphere = Sky
Time + Sun = Day
Time + Day = Night
Sky + Night = Star
Star + Sun = Space