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- Venus Express was ESA's first spacecraft to voyage to our nearest planet; it was built around the design of Mars Express, making it quicker and cheaper to develop.
www.esa.int/Enabling_Support/Operations/Venus_Express
Venus Express and Mars Express are very similar in design but some modifications had to be introduced on the spacecraft as the environment near Venus is harsher than the Martian environment. The solar flux is twice as powerful as it is in Earth orbit and four times as much as it is at Mars.
- ESA - Venus Express - European Space Agency
The Venus Express spacecraft was a virtual twin of Mars...
- ESA - Venus Express - European Space Agency
Nov 9, 2005 · The Venus Express spacecraft was a virtual twin of Mars Express. The spacecraft body itself, termed a 'bus', is a honeycomb aluminium box about 1.7 m wide, 1.4m height. With its solar arrays extended, it measures about 8 m across.
Venus Express was ESA's first mission to Earth's nearest planetary neighbour. The spacecraft was based on the Mars Express platform, with some modifications primarily due to the different thermal environment at Venus.
The design was based on a spectrometer on Mars Express, but modified for optimal performance for the Venus Express mission. However PFS failed during its deployment and no useful data was transmitted.
Nov 9, 2005 · Venus is only half the distance from the Sun compared to Mars, meaning that the spacecraft was heated four times more than Mars Express. Therefore, some design changes were required to make the spacecraft better suited to operating around Venus.
Venus Express is ESA's first mission to Earth's nearest planetary neighbour, Venus. The mission was born after ESA asked for proposals, in March 2001, suggesting how to reuse the design of the Mars Express spacecraft. The guidelines were extremely strict.
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The Venus Express spacecraft is designed to cope with the specific mission requirements of a scientific spacecraft orbiting Venus, with extensive reuse of the Mars Express design.
