Okay, here is the translation following your instructions: By the way, aliens

Author: Chen Xumin
Publisher:
Publish Date: 2000-06-01
Features: This book is part of the "Seas, Lands, and Skies Fun Puzzles Series" under the title "Talking About Extraterrestrials." It encompasses scientific mysteries in various fields that remain unsolved or have been identified, as well as how current scientists view these mysteries and how they plan to uncover the answers. It aims to inspire the interest and curiosity of young readers.