![](http://www.ecns.cn/hd/2023/04/25/90791a8d0981477794f79eaf8c516a48.jpg)
China Space Conference is held to mark the Space Day of China in Hefei, east China's Anhui Province, April 24, 2023. (Photo: China News Service/Zhang Yazi)
China celebrated this year's Space Day with the theme of "Investigate things to extend knowledge, exploring the firmament".
![](http://www.ecns.cn/hd/2023/04/25/01555ad9e5994f37929a44dcf9ccc3f7.jpg)
People visit a Space Day of China exhibition in Hefei, east China's Anhui Province, April 24, 2023. (Photo: China News Service/Zhang Yazi)
![](http://www.ecns.cn/hd/2023/04/25/4c01fb7529b7417e94e1b0bd74a75535.jpg)
People visit a Space Day of China exhibition in Hefei, east China's Anhui Province, April 24, 2023. (Photo: China News Service/Zhang Yazi)
![](http://www.ecns.cn/hd/2023/04/25/677bccb344a64c48958c95cd4bcc21b3.jpg)
People visit a Space Day of China exhibition in Hefei, east China's Anhui Province, April 24, 2023. (Photo: China News Service/Zhang Yazi)
![](http://www.ecns.cn/hd/2023/04/25/b87455d53ecc4e24a014d6eb405bdb30.jpg)
People visit a Space Day of China exhibition in Hefei, east China's Anhui Province, April 24, 2023. (Photo: China News Service/Zhang Yazi)