Lens array captures dim objects missed by giant telescopes
镜头(地质)
天文
光学
物理
作者
Govert Schilling
出处
期刊:Science [American Association for the Advancement of Science (AAAS)] 日期:2021-03-26卷期号:371 (6536): 1301-1301被引量:1
标识
DOI:10.1126/science.371.6536.1301
摘要
Astronomy today is dominated by telescopes with giant mirrors. But lens-based telescopes are making a comeback with Dragonfly, a telescope in New Mexico built from two fly-eye arrays of 24 Canon telephoto lenses. This month, the Dragonfly team announced it will add 120 more of the lenses in a $3.65 million upgrade, which will make it the largest lens-based telescope in the world in terms of light-gathering power. With a field of view far greater than that of an equivalent reflecting telescope, Dragonfly promises to capture the dim glow of vast, tenuous gas clouds that hold clues to the universe9s unseen dark matter.