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No More Doubts About ESA's Venus Express!

Artist's impression of Venus Express orbiting Venus
Paris (ESA) Nov 12, 2002
ESA's Science Programme Committee (SPC) has given the final go-ahead for the Venus Express mission. The SPC, which met on 4 and 5 November 2002, unanimously confirmed its strong will to bring the mission to realisation.

Furthermore, the Committee endorsed and agreed on a solution to the financial issues that had still cast serious doubts on the mission.

On 11 July 2002, Europe took a step closer to Venus. At that time, the ESA Science Programme Committee had agreed unanimously to start work on Venus Express. Venus Express would have reused the Mars Express spacecraft design and needed to be ready for launch in 2005. Since then, ESA invested 7 million Euros to start the first mission design phase. However, the mission's fate was not yet final because one nation, Italy, still had not confirmed its participation in the payload. Italy was given until October 2002 to provide its final commitment.

At the deadline, Italy could not completely commit to the financial support required for the payload under their responsibility. To rescue the mission, however, the ESA Science Management in collaboration with the Italian Space Agency (ASI) came to several financial proposals, one of which was eventually endorsed by SPC.

The Italian contribution to Venus Express will consist of the spare parts of the VIRTIS and PFS experiments and to the ASPERA instrument. ESA will financially contribute to the rest, for an amount of 8.5 million Euros. This amount also covers the integration and testing of the parts of the instruments Italy has taken on and anything else needed to fill other possible gaps to allow the Italian instruments to fly.

In exchange for ESA's support, the VIRTIS Science team will be further Europeanised.

ESA's management, the Science Programme Committee, the European scientific community, and the national space agencies have worked hard to get this far. ESA Science Director, Professor Southwood, at the end of the SPC works, said: "I'm extremely proud that the SPC managed to bring things together. Now we can clearly say to the scientists and industry: go to work to go to Venus!"

With Venus Express, ESA is the only agency world-wide with current plans to visit all the internal planets of the Solar System. However, both Japan and the United States have plans for future missions to Venus.

The idea behind Venus Express began in 2001 when ESA issued a call for ideas to reuse the Mars Express spacecraft design for a quick, low-cost mission. Among the constraints were that the new mission had to use the industrial teams already in place for Mars Express and that meant double-quick development. Despite the constraints, a large number of good ideas came in from scientists around Europe. Venus Express was eventually selected because of its great scientific value.

Venus is not well explored and an excellent group of instruments were easily available in Europe. These instruments had been developed as back-ups for either ESA's Mars Express spacecraft or ESA's comet-chaser mission, Rosetta. The instrument suite will be able to look at the planetary environment from surface to outermost atmosphere.

Venus is a twin to the Earth in terms of size and mass, yet has evolved in a radically different direction, with a surface temperature hotter than a kitchen oven and a choking mixture of noxious gases for an atmosphere.

Venus Express will make unique studies of this atmosphere and conduct the first radar soundings of the Venusian subsurface.

Astrium France and Astrium United Kingdom were responsible for the industrial study for Venus Express. The prime contractor for the next phase of design is Astrium France.

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Venus Express Comes Into Vision
Paris - Jul 16, 2002
On 11 July 2002, Europe took a step closer to Venus. The ESA Science Programme Committee agreed unanimously to start work on Venus Express. Venus Express will reuse the Mars Express spacecraft design and needs to be ready for launch in 2005.



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