interstellar

adj

1. (not-comparable)Between the stars.

   “It can take centuries for light to travel interstellar distances.”

2. (not-comparable)Among the stars.

   “Space is littered with interstellar particles.”

   “Approximately 5 billion years ago, our solar nebula was formed as gravitational forces pulled interstellar gas and dust into a swirling mass around out newly formed sun.”