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What the Curiosity rover has told us about Mars and it's Earth-like past.
Analysis of rock sample from the planet Mars reveals elements such as hydrogen, carbon, and oxygen, according to NASA.
Carbon is building block of life, though rover's discovery does not prove that life existed on Red Planet.
The media was too quick to infer the existence of organics on Mars simply due to the excitement of one scientist.
The latest evidence came from photos that rover Curiosity took revealing rounded pebbles and gravel.
NASA releases more spectacular pictures and audio from planet, likening it to Neil Armstrong's landmark lunar landing.
Featured on Al Jazeera
Swathes of the British electorate continue to show discontent with all things European, including immigration.
Astronomers have captured images of primordial galaxies that helped light up the cosmos after the Big Bang.
Critics assail British photographer's portrayal of indigenous people, but he says he's highlighting their plight.
As Western stars re-release 1980s charity hit, many Africans say it's a demeaning relic that can do more harm than good.

 
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