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ESA’s next Venus orbiter
- Envision will be ESA’s next Venus orbiter, providing a holistic view of the planet from its inner core to upper atmosphere to determine how and why Venus and Earth evolved so differently.
www.esa.int/Science_Exploration/Space_Science/ESA_selects_revolutionary_Venus_mission_Envision
Jan 25, 2024 · Envision will study Venus from its inner core to its outer atmosphere, giving important new insight into the planet's history, geological activity and climate. Being adopted means that the study phase is complete and ESA commits to implementing the mission.
- Envision factsheet
It aims to provide a holistic view of Venus, studying the...
- Mission information
EnVision is ESA's next mission to Venus, and consists of an...
- Why Venus
EnVision will investigate Venus from its inner core to its...
- Science with EnVision
It is an orbiter mission, aiming at determining the nature...
- Envision factsheet
It aims to provide a holistic view of Venus, studying the planet’s history, activity and climate. The Envision mission will address a number of key questions about our neighbour: How have the surface and interior of Venus evolved? How geologically and tectonically active is Venus today, and how active has it been over the past billion years?
Jun 10, 2021 · Envision will be ESA’s next Venus orbiter, providing a holistic view of the planet from its inner core to upper atmosphere to determine how and why Venus and Earth evolved so differently.
- Spacecraft
- Launch, Planetary Transfer, and Venus Orbit Phases
- Science Data Downlink
- Science Orbit and Data Coverage
The spacecraft will be a roughly rectangular three-axis stabilised satellite, weighing approximately 4.1 tonnes at launch (1.7 tonnes dry mass), measuring approx. 2 m x 2 m x 3 m in stowed configuration, with two deployable solar arrays. It will have a power budget of around 3 kW and a large volume (200 Tbits) of science data to be downlinked to Ea...
The EnVision launch is scheduled for November 2031, with back-up dates in 2032 and 2033. The mission will launch with an Ariane 64 rocket (direct escape). The interplanetary cruise phase will take around 15 months. The Venus orbit insertion will be highly elliptic, and the final science orbit will be reached by means of Aerobraking. The Aerobraking...
The science data downlink capability is ~200 Tbits using Ka-/X-band comms system with a >2.5 m diameter fixed high-gain antenna.
The spacecraft orbit will be polar, with a duration of ~92 minutes and an inclination between 87o and 89o. The orbit will be elliptical, with spacecraft altitudes varying between ~220 and 510 km above the surface. The slow rotation rate of Venus leads to a slow build-up of the observation coverage of the planet during the 6 Venus sideral days (~4 E...
EnVision will be the first mission to investigate Venus from its inner core to its upper atmosphere, characterising the interaction between its different envelopes: its atmosphere, surface/subsurface and interior. It aims to provide a holistic view of Venus, studying the planet’s history, activity and climate.
EnVision will investigate Venus from its inner core to its atmosphere at an unprecedented scale of resolution, characterising in particular, core and mantle structure, signs of active and past geologic processes and looking for evidence of the past existence of oceans.
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What is ESA's next Venus Orbiter?
It is an orbiter mission, aiming at determining the nature and current state of Venus’ geological evolution and its relationship with the atmosphere, to understand how and why Venus and Earth evolved so differently.
