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 Cosmos Magazine Magical Mystery Tour: the Pioneer AnomalyIt's had scientists puzzled for years – why are some space probes slowing down, but not others? While the effect began with the Pioneer spacecraft, it seems to be spreading.  Nicotine: Can It Save Your Brain?Is it a scourge on society or a blessing in disguise? Public enemy number one may soon be a treatment for cognitive diseases.  Doubts over dark energySome scientists are starting to question the very existence of the mysterious and almost undetectable dark energy. So where does this leave modern cosmology?  Empire of the SunSolar technologies have been around for years, but the market is suddenly scorching. Could this be the dawn of a new solar age?  End of days: a universe in ruinsWhen will the universe ends? And will the ultimate apocalypse arrive with a bang or a whimper? We look into the far, far future, to the day the cosmos decays into a frozen featureless void.  Timeline: the end of the universeWhat will happen as the stars wink out and the universe decays away to nothing? Read our brief history of the cosmos to find out.  Ocean wilderness is size of CaliforniaThe world's largest protected marine area recently opened for business, and it's already doing a brisk trade in conservation. We went island-hopping in Micronesia to learn more.  Mirror imageDon't be mistaken, this is no Space Shuttle. This is the Buran, product of Soviet suspicion, ingenuity and scant funds; and doomed to failure.  Time warpIt can fly or it can crawl and it waits for no man. Erica Harrison looks at what makes our sense of time tick.  The heat beneath our feetFor far too long it’s been overlooked, but geothermal energy from naturally radioactive hot rocks represents an abundant energy source right in our backyard.  Cosmic rouletteAs physicists around the world are staking the lot on the Large Hadron Collider, we review the odds of success.  Silent springDeep in the radioactive bowels of the smashed Chernobyl reactor, a strange new lifeform is blooming.  The coming famineWhat's even scarier than global warming? Julian Cribb argues that feeding the global appetite in an overpopulated, affluent and resource-scarce world could be the scientific challenge of the era.  Next stop: MarsWhat will it take to plant booted feet on Martian soil? And what will it take to keep them there indefinitely? We set our sights on the Red Planet.  Six things you didn't know about human missions to MarsWhy the first astronauts to Mars may never come back, why a Martian colony is unlikely to revolt against Earth and more... 
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