salt-sees-first-lighthttps://www.astronomy.com/tags/news/page/652/News | Page 652 of 681 | Astronomy.comBrowse all the latest astronomy and space news on planets, stars, galaxies, cosmology, observing events, space missions, and more.https://www.astronomy.com/wp-content/uploads/sites/2/2021/09/salt_mirror_tiles_500.jpg?fit=500%2C375InStockUSD1.001.00sciencearticleASY2023-05-182005-09-0147051