Astronomy is a natural science that studies celestial objects and phenomena. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky.
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This application is a flashcard alternative. An excellent tool to train your brain and expand your vocabulary. It's not affiliated with or endorsed by any testing organization, certificate, test name or trademark.
Disclaimer:
This application is a flashcard alternative. An excellent tool to train your brain and expand your vocabulary. It's not affiliated with or endorsed by any testing organization, certificate, test name or trademark.
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