Ancient Rome’s precision: In 398 BC, Romans dug a 1.2 km tunnel from both ends and met perfectly. No modern tools, just brilliant planning. [🎞️ simple.history_]…
Stunning images of Jupiter captured by the Juno spacecraft during a close flyby in October 2018. (view fullscreen) [📹 NASA/​JPL-Caltech/​SwRI/​MSSS/​Gerald Eichstädt]…
