interplanetary

Everyday

Between planets, or travelling from one planet to another. tree →

In the lessons

In science and space lessons: interplanetary space, interplanetary probes or missions; in science fiction stories, interplanetary travel. It tells the reader the topic is space beyond Earth.

Examples

• The probe began its long interplanetary journey. tree →
• Interplanetary space is almost empty. tree →
• In the film, an interplanetary war broke out. tree →
• One day people may make interplanetary trips to Mars. tree →
• Interplanetary distances are huge. tree →
• The comic is about an interplanetary postman. tree →

Note

Inter- means between; compare international (between nations) and interstellar (between stars, much farther). Distances between planets are measured in millions of kilometres.