NatureNews - Space and astronomy - nature.com science feedsNature - the world's best science and medicine on your desktop River deltas hint at ancient Martian oceanSimilar heights of channel mouths suggest they fed into one body of water. Astronomy: Ready for boarding — finallyNASA and Germany have spent 15 years and billions of dollars on SOFIA, an airborne telescope that is about to produce its first results. Eric Hand asks whether the science will justify the cost. A closer look at cosmic impactsMoon-crater survey could improve Solar System surface-dating methods. Collider gets yet more exotic 'to-do' listThe Large Hadron Collider could throw up evidence of new physics earlier than expected. Space capsule probed for asteroid dustHayabusa holds lessons for future sample-return missions. First light for Solar Dynamics Observatory'Treasure trove' of data reveals the anatomy and evolution of solar flares. Modelling Mars in a Texan torrentHuge canyon carved out in a week may aid understanding of prehistoric megafloods. Shockwave reveals star's birthplaceAstronomers spy the trail carved through interstellar gas by a massive runaway. Hotspots leave magnetic scars on MarsPuzzling 'stripes' generate another controversial origin theory. Enigmatic star could emerge from its gassy cocoonA dramatic drop in Eta Carinae's stellar winds could herald a bright future. In search of dark nightsAstronomers and conservationists team up against bright lights. Solar System showdownCompetition is fierce as committee weighs NASA's planetary priorities. The Sun as comet snatcherMost of the Solar System's comets may have been stolen from other stars. Satellite spots soggy soilEuropean Space Agency mission provides the first global map of a key climate variable. Asteroid probe begins return from rendezvousBut is Japan's Hayabusa capsule carrying any precious asteroid dust?
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