EnVision is an orbital mission to Venus being developed by the European Space Agency (ESA) that is planned to perform high-resolution radar mapping and atmospheric studies.

[4][3] EnVision is designed to help scientists understand the relationships between its geological activity and the atmosphere, and it would investigate why Venus and Earth took such different evolutionary paths.

EnVision will deliver new insights into geological history through complementary imagery, polarimetry, radiometry and spectroscopy of the surface coupled with subsurface sounding and gravity mapping; it will search for thermal, morphological, and gaseous signs of volcanic and other geological activity; and it will trace the fate of key volatile species from their sources and sinks at the surface through the clouds up to the mesosphere.

The data acquired with the VERITAS, DAVINCI, and EnVision from the end of this decade will fundamentally improve our understanding of the planet's long term history, current activity and evolutionary path.

[5] The scientists who submitted the EnVision proposal in response to the call for proposals for the M5 mission of ESA's Cosmic Vision program are Richard Ghail of Royal Holloway, University of London, Colin Wilson, Department of Physics, University of Oxford, UK and Thomas Widemann, LESIA, Observatoire de Paris and Université de Versailles-Saint-Quentin (France).