Easy learning about solar system, stars, celestial objects, constellations, spacecraft with pictures ,sounds and quiz games.

If you who always search and learn a quiz app like these, this app is for you

① Solar system Flash card app.
② Stars Quiz app.
③ Celestial objects quiz app.
④ Stars history and information app.
⑤ Constellations name cards.
⑥ Guess solar system app.


Features:
- You can learn many kinds of stars.
- You can play solar system quiz.
- Many information related to solar system, stars, celestial objects, constellations, spacecraft
- Support Quiz feature.
- Support 5 languages: English, Japanese, Korean, Chinese, Vietnamese