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The Proposal for Europe's Revolutionary New Mission to Venus

Direct link to the two-page Executive Summary of the proposal
(Full-text 50 page M5 proposal submitted to ESA on October 5th: available from the Resources page)

There are two Earth-sized planets in our solar system: we live on one and the other is the closest place we know to hell. Why?

EnVision has four major science themes:

  1. Activity (volcanism, tectonism, mass wasting, weathering, sedimentation, volatile sources and sinks)
  2. History (stratigraphy, past environments, ancient terrains, signatures of past oceans, climate change)
  3. Volatiles (water, sulphur dioxide, clouds, volcanic gases, dynamic processes)
  4. Planet (geodesy, spin, organisation, tectonics, internal structure and long-term evolution)

and three main instruments:

  1. VenSAR, the primary synthetic aperture radar
  2. SRS, the subsurface radar sounder
  3. VEM, the Venus IR emission mapper, IR and UV spectrometer

which combine with radio science to provide an unprecedented view of the interior, surface and atmosphere of Venus.

EnVision has been selected for Phase A study in the ESA M5 programme, with financial support from the Belgium, French, German, Italian and UK Space Agencies, and NASA

EnVision in the news :

  Scientists hope Venus will give up the secret
of how life evolved on Earth
featured by Van Kane on
the Planetary Society blog
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