欧几里德太空望远镜于2023年发射升空。这台代表着先进技术的望远镜能否揭开“暗物质”与“暗能量”之谜?欧几里德太空望远镜(Euclid space telescope)以解开宇宙的两大谜团：暗能量(dark energy)和暗物质(dark ...

The Shenzhou-19 crew members on board China's space station will conduct their second extravehicular activities (EVAs) within ...