ExoMars poised to start science mission
(PHYSorg.com Space & Earth)

The Trace Gas Orbiter has reached its final orbit after a year of `aerobraking` that ended in February. This exciting operation saw the craft skimming through the very top of the upper atmosphere, using drag on its solar wings to transform its initial highly elliptical four-day orbit of about 200 x 98 000 km into the final, much lower and near-circular path at about 400 km.