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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
Muslim volunteers face questioning and threat of arrest, while aid has been disrupted or blocked, charities say.
Six months on, outrage and sorrow over the mass schoolgirl abduction has disappeared - except for families in Nigeria.
ISIL combatants seeking an 'exit strategy' from Mideast conflict need positive reinforcement back home, analysts say.
European nation hit by a wave of Islamophobia as many young fighters join ISIL in Syria and Iraq.
 
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