1st Grade
M _ _ N
Moon
G _ L _ X _
Galaxy
B L _ _ K H _ L _
Black Hole
E _ L I _ S E
Eclipse
E X _ L _ R _ T I _ N
Exploration
S T _ R
Star
E _ R _ H
Earth
S _ T _ R _
Saturn
C _ A T _ R
Crater
S _ T _ L L _ T _
Satellite
C _ M _ T
Comet
R _ C _ E _
Rocket
U _ I V _ R _ E
Universe
O _ B _ T
Orbit
C _ N S _ E _ L A _ I _ N
Constellation
R _ N _ S
Rings
G _ A _ I _ Y
Gravity
F _ L L _ _ G S T _ _ R
Falling Star
M _ L K _ W _ Y
Milky Way
Z _ D _ _ C
Zodiac
P L _ _ E T
Planet
P L _ T _
Pluto
M _ R C _ R _ Y
Mercury
M _ T _ O R
Meteor
P _ N _ _ B R _ A
Penumbra