Probe to a comet.

Rosetta is a European Space Agency-led unmanned space mission launched in 2004 intended to study the comet 67 P/Churyumov-Gerasimenko. Rosetta consists of two main elements: the Rosetta space probe and the Philae lander. The probe is named after the Rosetta Stone, as it is hoped the mission will help unlock the secrets of how our solar system looked before planets formed.

Rosetta is an American post-metal band incorporating elements of death metal, drone music, and ambient music creating a sprawling, atmospheric sound similar to Neurosis and Cult of Luna, and coined by some as "space metal". Their debut album, The Galilean Satellites, featured two separate hour-long discs (one of more metal-oriented music, and one of ambiance) that synchronize together.

Rosetta is a 1999 Belgian film written and directed by Jean-Pierre and Luc Dardenne. It is about a seventeen year old girl (played by Émilie Dequenne) who lives in a trailer park with her alcoholic mother. Trying to survive and to escape her situation, she attempts to find and hold a job that will allow her to move out of the caravan and away from her mother.

Rosetta is the anglicised name of the city of Rashid, a harbor on the Mediterranean coast in Egypt. It is located 65 km (40 miles) east of Alexandria, at , in al-Buhayrah governorate. It was founded around 800 AD.

The ROSETTA C++ library is a collection of C++ classes and routines that enable discernibility-based empirical modelling and data mining. Comprises useful routines for machine learning in general and for rough set theory in particular.

Rosetta is a lightweight dynamic translator for Mac OS X distributed by Apple. It enables applications compiled for the Power PC family of processors to run on Apple systems that use Intel processors. Based on Transitive Corporation's Quick Transit technology, Rosetta is a key part of Apple's strategy for the transition of their Macintosh line from PowerPC to Intel processors, enabling pre-existing Mac OS X software to run on the new platform without modification.