哈勃太空望远镜（Hubble Space Telescope, HST）是NASA与欧洲空间局（ESA）合作的里程碑式天文观测项目。哈勃望远镜于1990年4月24日由发现号航天飞机送入轨道，运行在地球约547公里高的低地球轨道。哈勃望远镜以其深空成像闻名，帮助科学家确定了宇宙的年龄和膨胀速率，发现了暗能量的存在。
Hubble trouble: Can you handle the cosmic challenge?
来源： Space.com Over the decades, Hubble has become a household name, not just among astronomers but among anyone who’s ever looked up and wondered what’s out there. From confirming the existence of dark energy to helping measure the age of the universe, its discoveries have reshaped science textbooks and sparked imaginations worldwide. Try it out below and see how well you score!