Correct

星际

/ xīngjì / 
Strokes

Definition

interstellar/interplanetary

Example

As a Noun

interspace

1
Xīngjì
星际
lǚxíng
旅行

space/interplanetary travel

2
Xīngjì
星际
kōngjiān
空间

interstellar space

3
Xīngjì
星际
fēichuán
飞船

space ship