The first monolith to be discovered in the modern age was unearthed on the Moon near Tycho Crater after it emitted a powerful magnetic field that was detected and investigated. It was called the Tycho Magnetic Anomaly 1 ("TMA-1") before the monolith was discovered. After this is discovered to be an alien artifact, its name becomes the "Tycho Monolith Anomaly 1" (still TMA-1).