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。
哈勃望远镜专栏
Space.com article about hubble
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Satellite snaps amazing 36th birthday pic of Hubble Space Telescope (photo)
来源： Space.com “Celebrating 36 years of discovery with the Hubble Space Telescope,” Vantor wrote in an X post that shared the photo. “For over three decades, Hubble has expanded our understanding of the universe —delivering breathtaking imagery and groundbreaking science that continue to inspire. Proud to support the technologies and teams that make moments like this possible.” For example, the in-space photo was taken from just 34.8 miles (61.8 kilometers) away, providing “an incredible perspective of one of humanity’s most iconic scientific instruments,” the X post reads. “With a space sample distance of 4.0 cm [1.6 inches], Hubble’s signature cylindrical body, gleaming thermal shielding, and extended solar arrays are clearly visible, along with the open aperture door at the front of the telescope.” ...