#Y2023 #天文光学 月球上找个陨石坑造射电望远镜 ![](https://cdn.jsdelivr.net/gh/Sterncat/BlogPics/OpticsWiki/LCRT.jpg) The Lunar Crater Radio Telescope (LCRT) is a proposal by the NASA Institute for Advanced Concepts (NIAC) to create an ultra-long-wavelength (that is, wavelengths greater than 10 m, corresponding to frequencies below 30 MHz) radio telescope inside a lunar crater on the far side of the Moon.