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Venus Express has made the first detection of an atmospheric loss process on Venus's day-side. Last year, the spacecraft revealed that most of the lost atmosphere escapes from the night-side. Together, these discoveries bring planetary scientists closer to understanding what happened to the water on Venus, which is suspected to have once been as abundant as on Earth.

  Double vortex at Venus South pole     ESA’s Venus Express data undoubtedly confirm for the first time the presence of a huge 'double-eye' atmospheric vortex at the planet's south pole. This striking result comes from analysis of the data gathered by the spacecraft during the first orbit around the planet.  On 11 April this year, Venus Express was captured into a first elongated orbit around Venus, which lasted 9 days, and ranged between 350 000 and 400 kilometres from Venus' surface. This orbit represented for the Venus Express scientists a unique opportunity to observe the planet from...

Venus Express set for liftoff Venus Express, the European Space Agency's first mission to explore Earth's closest neighbour, will be launched next Wednesday from the Baikonur cosmodrome in Kazakhstan. The ESA gave the prospective launch time as 0443 GMT. The 1.27-tonne unmanned spacecraft, which will be taken aloft by a Russian-made Soyuz-Fregat rocket, is expected to arrive at Venus on April 6. Venus Express, equipped with seven instruments, is intended to map the Venusian surface and weather system, looking at temperature variation, cloud formations, wind speeds and gas composition. Its main goal is to help understand why Venus fell prey...

PARIS (AFP) - Venus Express, the European Space Agency's first mission to explore Earth's closest neighbour, will be launched next Wednesday from the Baikonur cosmodrome in Kazakhstan. The ESA gave the prospective launch time as 0443 GMT. The 1.27-tonne unmanned spacecraft, which will be taken aloft by a Russian-made Soyuz-Fregat rocket, is expected to arrive at Venus on April 6. Venus Express, equipped with seven instruments, is intended to map the Venusian surface and weather system, looking at temperature variation, cloud formations, wind speeds and gas composition. Its main goal is to help understand why Venus fell prey to runaway...

One year after its launch on 9 November 2005 and a few months into its science phase, ESA's Venus Express keeps working well and continues to gather lots of data about the hot and noxious atmosphere of the planet. Newly released images show additional details of the thick cloud deck that surrounds Venus. This night-side, false-colour image was taken by the Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) on board Venus Express on 23 September 2006, when the spacecraft was flying at about 60 000 kilometres over the planet around the point of furthest distance from the surface (apocentre). (Credits:...

The results, presented today at the American Geophysical Union (AGU) assembly in San Francisco, USA, were obtained thanks to VIRTIS, the Visible and Infrared Thermal Imaging Spectrometer on board Venus Express. To obtain this fundamental information about the surface temperature, VIRTIS made use of the so-called infrared spectral 'windows' present in the Venusian atmosphere. Through these 'windows' thermal radiation at specific wavelengths can leak from the deepest atmospheric layers, pass through the dense cloud curtain situated at about 60 kilometres altitude, and then escape to space, where it can be detected by instruments like VIRTIS. In this way VIRTIS succeeded...

Less than one month after insertion into orbit, and after sixteen loops around the planet Venus, ESA’s Venus Express spacecraft has reached its final operational orbit on 7 May 2006. ... Launched on 9 November 2005, Venus Express arrived to destination on 11 April 2006, after a five-month interplanetary journey to the inner solar system. The initial orbit – or ‘capture orbit’ – was an ellipse ranging from 330 000 kilometres at its furthest point from Venus surface (apocentre) to less than 400 kilometres at its closest (pericentre). As of the 9-day capture orbit, Venus Express had to perform a...

ESA's Venus Express has returned the first-ever images of the hothouse planet’s south pole from a distance of 206 452 kilometres, showing surprisingly clear structures and unexpected detail. The images were taken 12 April during the spacecraft’s initial capture orbit after successful arrival on 11 April 2006. Engineers have lost no time in switching on several of the instruments and yesterday the VMC (Venus Monitoring Camera) and VIRTIS (Visible and Infrared Thermal Imaging Spectrometer) imaged, for the first time in space history, the southern hemisphere of Venus as the spacecraft passed below the planet in an elliptical arc.