Rosetta Stone Rosetta Stone The Rosetta Stone is a granodiorite stele, found in 1799, inscribed with three versions of a decree issued at Memphis, Egypt in 196 BC during the Ptolemaic dynasty on behalf of King Ptolemy V. The top and middle texts are in Ancient Egyptian using hieroglyphic script and Demotic script, respectively, while the bottom is in Ancient Greek. As the decree has only minor differences between the three versions, the Rosetta Stone proved to be the key to deciphering Egyptian hieroglyphs, thereby opening a window into ancient Egyptian history. The stone, carved during the Hellenistic period, is believed to
Rosetta (spacecraft) "Philae" performed the first successful landing on a comet, though its battery power ran out two days later. Communications with "Philae" were briefly restored in June and July 2015, but due to diminishing solar power, "Rosetta" communications module with the lander was turned off on 27 July 2016. On 30 September 2016, the "Rosetta" spacecraft ended its mission by hard-landing on the comet in its Ma'at region. The probe was named after the Rosetta Stone, a stele of Egyptian origin featuring a decree in three scripts. The lander was named after the Philae obelisk, which bears a bilingual Greek and