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European Venus Explorer

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.^[1] However, requests to fund and develop the spacecraft in 2007^[2] and 2010^[3] were rejected.^[4]

EVE was a Medium-Class mission proposal in the Cosmic Vision programme.^[5] 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.^[5]

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.^[1]^[5]

References

^ ^a ^b ESA description of the VEP technology reference study
^ First proposal for launch in 2016-18 timeframe
^ Second proposal for 2021-23 launch
^ EVE - European Venus Explorer
^ ^a ^b ^c 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

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	VERITAS (2029) EnVision (2031)
Flybys	Dragonfly (2027) MBR Explorer (2028)
Descent probes	Venus Life Finder (2025) DAVINCI (2029)

Proposed missions

Venus missions	AREE CUVE HAVOC HOVER Venus Orbiter Mission VAMP Venera-D VICI VISAGE VISE VOICE VOX Zephyr
Flybys	Mercury-P Laplace-P NASA Uranus orbiter and probe