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The European Venus Explorer (EVE), known until 2007 as the Venus Entry Probe (VEP), is a proposed European Space Agency space probe to Venus. In the timeline of the 2005 TRS (technology reference study), the spacecraft was proposed to be launched on a Soyuz-2/Fregat launch vehicle around 2013. However, requests to fund and develop the spacecraft in 2007 and 2010 were rejected.

EVE was a Medium-Class mission proposal in the Cosmic Vision programme. The mission concept consisted of an orbiter and balloon which would circumnavigate the planet over the course of one week, and a lander probe which would operate for approximately one hour on the surface.

Overview

The mission concept calls for two satellites: the Venus Polar Orbiter (VPO), for remote sensing of the atmospheric, and the Venus Elliptical Orbiter (VEO), which deploys the entry probe from a highly elliptical orbit. The entry probe would contain a balloon-aerobot which floats in benign conditions at 55 km altitude in the middle cloud layer, and would drop up to 15 microprobes into the lower atmosphere.

References

1. ^ ESA description of the VEP technology reference study
2. First proposal for launch in 2016-18 timeframe
3. Second proposal for 2021-23 launch
4. EVE - European Venus Explorer
5. ^ Chassefière, E.; Korablev, O.; Imamura, T.; Baines, K. H.; Wilson, C. F.; Titov, D. V.; Aplin, K. L.; Balint, T.; Blamont, J. E. (2009-03-01). "European Venus Explorer (EVE): an in-situ mission to Venus". Experimental Astronomy. 23 (3): 741–760. Bibcode:2009ExA....23..741C. doi:10.1007/s10686-008-9093-x. ISSN 0922-6435.

External links

• ESA - Venus Entry Probe - an atmospheric probe
• Contractor for the SSTL/ESA – Venus Entry Probe study Archived 2018-06-22 at the Wayback Machine
• French article mentioning the Venus Entry Probe

v t e Spacecraft missions to Venus
Active missions	Orbiters Akatsuki Flybys Parker Solar Probe (en route) BepiColombo (en route) Solar Orbiter (en route) Jupiter Icy Moons Explorer (en route)
Past missions	Orbiters Magellan Pioneer Venus Orbiter Venera 9 10 15 16 Venus Express Flybys Venera 1 Mariner 2 Zond 1 Venera 2 Mariner 5 10 Venera 11 12 13 14 Vega 1 2 Galileo Cassini–Huygens MESSENGER IKAROS Shin-en Descent probes Venera 3 4 5 6 Pioneer Venus Multiprobe Landers Venera 7 8 9 10 11 12 13 14 Vega 1 2 Pioneer Venus Small Probes Balloon probes Vega 1 2 Failed launches Tyazhely Sputnik Mariner 1 2MV-1 No.1 2MV-1 No.2 2MV-2 No.1 Kosmos 21 3MV-1 No.2 Kosmos 27 96 167 482
Planned missions	Orbiters Venus Orbiter Mission (2028) VERITAS (2031) EnVision (2031) Flybys Dragonfly (2028) MBR Explorer (2028) Tianwen-4 (2030) Descent probes Venus Life Finder (2025) DAVINCI (2031–2032)
Proposed missions	Venus missions CUVE Venera-D Zephyr Flybys Mercury-P Uranus Orbiter and Probe
Cancelled or not developed	AREE European Venus Explorer HAVOC HOVER Inspiration Mars Laplace-P TMK-Mavr VAMP Venus Orbiting Imaging Radar Vesta VICI VISAGE VISE VOICE VOX
Program overviews	Venera 3MV Mariner Pioneer Venus Vega
Related	Colonization Observations and explorations List of artificial objects on Venus List of missions Manned Venus flyby Terraforming VeSpR
Missions are ordered by launch date. indicates failure en route or before any data returned. indicates use of the planet as a gravity assist en route to another destination.

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