Saturn’s orange moon Titan has hundreds of times more liquid hydrocarbons than all the known oil and natural gas reserves on Earth, according to new Cassini data. The hydrocarbons rain from the sky, collecting in vast deposits that form lakes and dunes.The new findings from the study led by Ralph Lorenz, Cassini radar team member from the Johns Hopkins University Applied Physics Laboratory, USA, are reported in the 29 January 2008 issue of the Geophysical Research Letters.”Titan is just covered in carbon-bearing material—it’s a giant factory of organic chemicals,” said Lorenz. “This vast carbon inventory is an important window into the geology and climate history of Titan.”

Photo rendering: Copyright Kees Veenenbos

• ESA - Space Science - Titan’s surface organics surpass oil reserves on Earth

Accommodate Students writes “The BBC is reporting on the first space mission to Venus in a decade, which is about to reach its target. From the article: ‘On Tuesday morning, a European robotic craft will perform a 50-minute-long engine burn to slow its speed enough to be captured by Venus’ gravity. Venus Express will orbit our nearest planetary neighbour for about 500 Earth days to study its atmosphere, which has undergone runaway greenhouse warming.’ If all goes well, it could shed important light on climate change here on Earth.”

• Slashdot | Venus Probe Set to Reach Target

Martian Ice Lake

The HRSC on ESA’s Mars Express obtained this perspective view on 2 February 2005 during orbit 1343 with a ground resolution of approximately 15 metres per pixel.

It shows an unnamed impact crater located on Vastitas Borealis, a broad plain that covers much of Mars’s far northern latitudes, at approximately 70.5° North and 103° East.

The crater is 35 kilometres wide and has a maximum depth of approximately 2 kilometres beneath the crater rim. The circular patch of bright material located at the centre of the crater is residual water ice.

The colours are very close to natural, but the vertical relief is exaggerated three times. The view is looking east.

Credits: ESA/DLR/FU Berlin (G. Neukum)

Source: ESA | Water ice in crater at Martian north pole

ESA’s Envisat The most detailed portrait ever of the Earth’s land surface is being created with ESA’s Envisat environmental satellite. The GLOBCOVER project aims at producing a global land cover map to a resolution three times sharper than any previous satellite map.

It will be a unique depiction of the face of our planet in 2005, broken down into more than 20 separate land cover classes. The completed GLOBCOVER map will have numerous uses, including plotting worldwide land use trends, studying natural and managed ecosystems and modelling climate change extent and impacts.

Envisat’s Medium Resolution Imaging Spectrometer (MERIS) instrument is being systematically used in Full Resolution Mode for the project, acquiring images with a spatial resolution of 300 metres, with an average 150 minutes of acquisitions occurring daily.

ESA - Observing the Earth - Envisat making sharpest ever global Earth map